31031204434402 has 8 divisors (see below), whose sum is σ = 47026670637996. Its totient is φ = 15355647555072.

The previous prime is 31031204434379. The next prime is 31031204434411. The reversal of 31031204434402 is 20443440213013.

It can be written as a sum of positive squares in 2 ways, for example, as 26774736173761 + 4256468260641 = 5174431^2 + 2063121^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79977330823 + ... + 79977331210.

Almost surely, 2^{31031204434402} is an apocalyptic number.

31031204434402 is a deficient number, since it is larger than the sum of its proper divisors (15995466203594).

31031204434402 is a wasteful number, since it uses less digits than its factorization.

31031204434402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159954662132.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 31031204434402 its reverse (20443440213013), we get a palindrome (51474644647415).

The spelling of 31031204434402 in words is "thirty-one trillion, thirty-one billion, two hundred four million, four hundred thirty-four thousand, four hundred two".