31220240411044 has 24 divisors (see below), whose sum is σ = 54662762315168. Its totient is φ = 15602310072000.

The previous prime is 31220240411039. The next prime is 31220240411047. The reversal of 31220240411044 is 44011404202213.

It is a super-2 number, since 2×31220240411044² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31220240411047) 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, 72613927 + ... + 73042609.

Almost surely, 2^{31220240411044} is an apocalyptic number.

It is an amenable number.

31220240411044 is a deficient number, since it is larger than the sum of its proper divisors (23442521904124).

31220240411044 is a wasteful number, since it uses less digits than its factorization.

31220240411044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437755 (or 437753 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 31220240411044 its reverse (44011404202213), we get a palindrome (75231644613257).

The spelling of 31220240411044 in words is "thirty-one trillion, two hundred twenty billion, two hundred forty million, four hundred eleven thousand, forty-four".