31021423041 has 16 divisors (see below), whose sum is σ = 47276643200. Its totient is φ = 17724313728.

The previous prime is 31021423033. The next prime is 31021423079. The reversal of 31021423041 is 14032412013.

It is not a de Polignac number, because 31021423041 - 2³ = 31021423033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31021422999 and 31021423017.

It is not an unprimeable number, because it can be changed into a prime (31021423031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88125 + ... + 264213.

It is an arithmetic number, because the mean of its divisors is an integer number (2954790200).

Almost surely, 2^31021423041 is an apocalyptic number.

It is an amenable number.

31021423041 is a deficient number, since it is larger than the sum of its proper divisors (16255220159).

31021423041 is a wasteful number, since it uses less digits than its factorization.

31021423041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184488.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31021423041 its reverse (14032412013), we get a palindrome (45053835054).

The spelling of 31021423041 in words is "thirty-one billion, twenty-one million, four hundred twenty-three thousand, forty-one".