3121011303402 has 16 divisors (see below), whose sum is σ = 6242052242880. Its totient is φ = 1040332161792.

The previous prime is 3121011303401. The next prime is 3121011303407. The reversal of 3121011303402 is 2043031101213.

It is not an unprimeable number, because it can be changed into a prime (3121011303401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276499 + ... + 2513657.

It is an arithmetic number, because the mean of its divisors is an integer number (390128265180).

Almost surely, 2^{3121011303402} is an apocalyptic number.

3121011303402 is an abundant number, since it is smaller than the sum of its proper divisors (3121040939478).

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

3121011303402 is a wasteful number, since it uses less digits than its factorization.

3121011303402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469677.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 3121011303402 its reverse (2043031101213), we get a palindrome (5164042404615).

It can be divided in two parts, 312101 and 1303402, that added together give a triangular number (1615503 = T₁₇₉₇).

The spelling of 3121011303402 in words is "three trillion, one hundred twenty-one billion, eleven million, three hundred three thousand, four hundred two".