31323244364 has 24 divisors (see below), whose sum is σ = 56314585488. Its totient is φ = 15233624640.

The previous prime is 31323244361. The next prime is 31323244367. The reversal of 31323244364 is 46344232313.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31323244361) and next prime (31323244367).

It is a super-2 number, since 2×31323244364² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (31323244361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474119 + ... + 536129.

It is an arithmetic number, because the mean of its divisors is an integer number (2346441062).

Almost surely, 2^31323244364 is an apocalyptic number.

It is an amenable number.

31323244364 is a deficient number, since it is larger than the sum of its proper divisors (24991341124).

31323244364 is a wasteful number, since it uses less digits than its factorization.

31323244364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65465 (or 65463 counting only the distinct ones).

The product of its digits is 124416, while the sum is 35.

Adding to 31323244364 its reverse (46344232313), we get a palindrome (77667476677).

The spelling of 31323244364 in words is "thirty-one billion, three hundred twenty-three million, two hundred forty-four thousand, three hundred sixty-four".