Search a number
-
+
12303131312213 = 759314592031457
BaseRepresentation
bin1011001100001000101111…
…0001011000000001010101
31121120011112101010021100222
42303002023301120001111
53103033303103442323
642055551442044125
72406605030445110
oct263021361300125
947504471107328
1012303131312213
113a1380197a335
121468519949645
136b324618a851
14307690949577
151650754609c8
hexb308bc58055

12303131312213 has 16 divisors (see below), whose sum is σ = 14094093087360. Its totient is φ = 10520536836096.

The previous prime is 12303131312203. The next prime is 12303131312231. The reversal of 12303131312213 is 31221313130321.

It is not a de Polignac number, because 12303131312213 - 28 = 12303131311957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303131312203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5040581 + ... + 7072037.

It is an arithmetic number, because the mean of its divisors is an integer number (880880817960).

Almost surely, 212303131312213 is an apocalyptic number.

It is an amenable number.

12303131312213 is a deficient number, since it is larger than the sum of its proper divisors (1790961775147).

12303131312213 is a wasteful number, since it uses less digits than its factorization.

12303131312213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033516.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 12303131312213 its reverse (31221313130321), we get a palindrome (43524444442534).

The spelling of 12303131312213 in words is "twelve trillion, three hundred three billion, one hundred thirty-one million, three hundred twelve thousand, two hundred thirteen".

Divisors: 1 7 593 1459 4151 10213 865187 2031457 6056309 14220199 1204654001 2963895763 8432578007 20747270341 1757590187459 12303131312213