31213301404 has 6 divisors (see below), whose sum is σ = 54623277464. Its totient is φ = 15606650700.

The previous prime is 31213301377. The next prime is 31213301407. The reversal of 31213301404 is 40410331213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31213301407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3901662672 + ... + 3901662679.

Almost surely, 2^31213301404 is an apocalyptic number.

It is an amenable number.

31213301404 is a deficient number, since it is larger than the sum of its proper divisors (23409976060).

31213301404 is a wasteful number, since it uses less digits than its factorization.

31213301404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7803325355 (or 7803325353 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31213301404 its reverse (40410331213), we get a palindrome (71623632617).

The spelling of 31213301404 in words is "thirty-one billion, two hundred thirteen million, three hundred one thousand, four hundred four".