402120332431010 has 128 divisors (see below), whose sum is σ = 778209719581440. Its totient is φ = 149303323008000.

The previous prime is 402120332430979. The next prime is 402120332431057. The reversal of 402120332431010 is 10134233021204.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 531733577 + ... + 532489283.

It is an arithmetic number, because the mean of its divisors is an integer number (6079763434230).

Almost surely, 2^{402120332431010} is an apocalyptic number.

402120332431010 is a deficient number, since it is larger than the sum of its proper divisors (376089387150430).

402120332431010 is a wasteful number, since it uses less digits than its factorization.

402120332431010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756372.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 402120332431010 its reverse (10134233021204), we get a palindrome (412254565452214).

The spelling of 402120332431010 in words is "four hundred two trillion, one hundred twenty billion, three hundred thirty-two million, four hundred thirty-one thousand, ten".