31243244444445 has 32 divisors (see below), whose sum is σ = 56414134177920. Its totient is φ = 14625886634240.

The previous prime is 31243244444437. The next prime is 31243244444501. The reversal of 31243244444445 is 54444444234213.

It is not a de Polignac number, because 31243244444445 - 2³ = 31243244444437 is a prime.

It is a super-2 number, since 2×31243244444445² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31243244444394 and 31243244444403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3264702054 + ... + 3264711623.

It is an arithmetic number, because the mean of its divisors is an integer number (1762941693060).

Almost surely, 2^{31243244444445} is an apocalyptic number.

It is an amenable number.

31243244444445 is a deficient number, since it is larger than the sum of its proper divisors (25170889733475).

31243244444445 is a wasteful number, since it uses less digits than its factorization.

31243244444445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6529413725.

The product of its digits is 11796480, while the sum is 48.

Adding to 31243244444445 its reverse (54444444234213), we get a palindrome (85687688678658).

The spelling of 31243244444445 in words is "thirty-one trillion, two hundred forty-three billion, two hundred forty-four million, four hundred forty-four thousand, four hundred forty-five".