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312023120123 = 1113411014571153
BaseRepresentation
bin1001000101001100000…
…01101111100011111011
31002211101102112210221102
410202212001233203323
520103010404320443
6355201430202015
731354136521601
oct4424601574373
91084342483842
10312023120123
11110367a0a410
125057bab330b
13235679c9a80
141115dc5b871
1581b2e99cb8
hex48a606f8fb

312023120123 has 64 divisors (see below), whose sum is σ = 380390822784. Its totient is φ = 252149760000.

The previous prime is 312023120107. The next prime is 312023120159. The reversal of 312023120123 is 321021320213.

It is a cyclic number.

It is not a de Polignac number, because 312023120123 - 24 = 312023120107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312023120095 and 312023120104.

It is not an unprimeable number, because it can be changed into a prime (312023120923) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 270617915 + ... + 270619067.

It is an arithmetic number, because the mean of its divisors is an integer number (5943606606).

Almost surely, 2312023120123 is an apocalyptic number.

312023120123 is a deficient number, since it is larger than the sum of its proper divisors (68367702661).

312023120123 is a wasteful number, since it uses less digits than its factorization.

312023120123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 312023120123 its reverse (321021320213), we get a palindrome (633044440336).

The spelling of 312023120123 in words is "three hundred twelve billion, twenty-three million, one hundred twenty thousand, one hundred twenty-three".

Divisors: 1 11 13 41 101 143 451 457 533 1111 1153 1313 4141 5027 5863 5941 12683 14443 14989 18737 45551 46157 47273 53833 65351 116453 164879 206107 243581 507727 520003 526921 592163 600041 614549 1280983 1513889 1892437 2679391 4774573 5796131 6600451 6760039 6849973 16652779 20816807 21603761 24601681 52520303 53219021 62069449 75349703 237641371 270618491 280848893 585409231 682763939 691847273 2181979861 3089337823 7610320003 24001778471 28365738193 312023120123