101321120402 has 32 divisors (see below), whose sum is σ = 167185652400. Its totient is φ = 45838686208.

The previous prime is 101321120371. The next prime is 101321120449. The reversal of 101321120402 is 204021123101.

It can be written as a sum of positive squares in 8 ways, for example, as 54708742201 + 46612378201 = 233899^2 + 215899^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 9224 + ... + 450252.

Almost surely, 2^101321120402 is an apocalyptic number.

101321120402 is a deficient number, since it is larger than the sum of its proper divisors (65864531998).

101321120402 is a wasteful number, since it uses less digits than its factorization.

101321120402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441310.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 101321120402 its reverse (204021123101), we get a palindrome (305342243503).

The spelling of 101321120402 in words is "one hundred one billion, three hundred twenty-one million, one hundred twenty thousand, four hundred two".