31024221323444 has 6 divisors (see below), whose sum is σ = 54292387316034. Its totient is φ = 15512110661720.

The previous prime is 31024221323441. The next prime is 31024221323477. The reversal of 31024221323444 is 44432312242013.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 30117726913444 + 906494410000 = 5487962^2 + 952100^2 .

It is a super-2 number, since 2×31024221323444² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31024221323441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3878027665427 + ... + 3878027665434.

It is an arithmetic number, because the mean of its divisors is an integer number (9048731219339).

Almost surely, 2^{31024221323444} is an apocalyptic number.

It is an amenable number.

31024221323444 is a deficient number, since it is larger than the sum of its proper divisors (23268165992590).

31024221323444 is a wasteful number, since it uses less digits than its factorization.

31024221323444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7756055330865 (or 7756055330863 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 31024221323444 its reverse (44432312242013), we get a palindrome (75456533565457).

The spelling of 31024221323444 in words is "thirty-one trillion, twenty-four billion, two hundred twenty-one million, three hundred twenty-three thousand, four hundred forty-four".