31404442344402 has 32 divisors (see below), whose sum is σ = 67345341753600. Its totient is φ = 9727660470528.

The previous prime is 31404442344383. The next prime is 31404442344467. The reversal of 31404442344402 is 20444324440413.

It is a happy number.

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, 1948641877 + ... + 1948657992.

It is an arithmetic number, because the mean of its divisors is an integer number (2104541929800).

Almost surely, 2^{31404442344402} is an apocalyptic number.

31404442344402 is an abundant number, since it is smaller than the sum of its proper divisors (35940899409198).

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

31404442344402 is a wasteful number, since it uses less digits than its factorization.

31404442344402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897299970.

The product of its (nonzero) digits is 589824, while the sum is 39.

Adding to 31404442344402 its reverse (20444324440413), we get a palindrome (51848766784815).

The spelling of 31404442344402 in words is "thirty-one trillion, four hundred four billion, four hundred forty-two million, three hundred forty-four thousand, four hundred two".