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1310020131210 = 2357312515691409
BaseRepresentation
bin10011000100000011010…
…010001101100110001010
311122020101112222212011220
4103010003102031212022
5132430410123144320
62441452005502510
7163434343250040
oct23040322154612
94566345885156
101310020131210
1146563823706a
12191a83111a36
13966c401296b
144759626c390
152412395ce40
hex1310348d98a

1310020131210 has 256 divisors, whose sum is σ = 3733077196800. Its totient is φ = 287907840000.

The previous prime is 1310020131149. The next prime is 1310020131227. The reversal of 1310020131210 is 121310200131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1310020131210.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 929750986 + ... + 929752394.

It is an arithmetic number, because the mean of its divisors is an integer number (14582332800).

Almost surely, 21310020131210 is an apocalyptic number.

1310020131210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1310020131210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1866538598400).

1310020131210 is an abundant number, since it is smaller than the sum of its proper divisors (2423057065590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1310020131210 is a wasteful number, since it uses less digits than its factorization.

1310020131210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1310020131210 its reverse (121310200131), we get a palindrome (1431330331341).

The spelling of 1310020131210 in words is "one trillion, three hundred ten billion, twenty million, one hundred thirty-one thousand, two hundred ten".