331213320123402 has 32 divisors (see below), whose sum is σ = 690565491500544. Its totient is φ = 105785154936000.

The previous prime is 331213320123397. The next prime is 331213320123451. The reversal of 331213320123402 is 204321023312133.

It is a self number, because there is not a number n which added to its sum of digits gives 331213320123402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8815410793 + ... + 8815448364.

It is an arithmetic number, because the mean of its divisors is an integer number (21580171609392).

Almost surely, 2^{331213320123402} is an apocalyptic number.

331213320123402 is an abundant number, since it is smaller than the sum of its proper divisors (359352171377142).

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

331213320123402 is a wasteful number, since it uses less digits than its factorization.

331213320123402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17630859294.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 331213320123402 its reverse (204321023312133), we get a palindrome (535534343435535).

The spelling of 331213320123402 in words is "three hundred thirty-one trillion, two hundred thirteen billion, three hundred twenty million, one hundred twenty-three thousand, four hundred two".