31373522041 has 4 divisors (see below), whose sum is σ = 31841783632. Its totient is φ = 30905260452.

The previous prime is 31373522039. The next prime is 31373522077. The reversal of 31373522041 is 14022537313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14022537313 = 1289 ⋅10878617.

It is a cyclic number.

It is not a de Polignac number, because 31373522041 - 2¹ = 31373522039 is a prime.

It is a super-2 number, since 2×31373522041² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31373521994 and 31373522012.

It is not an unprimeable number, because it can be changed into a prime (31373522021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234130695 + ... + 234130828.

It is an arithmetic number, because the mean of its divisors is an integer number (7960445908).

Almost surely, 2^31373522041 is an apocalyptic number.

It is an amenable number.

31373522041 is a deficient number, since it is larger than the sum of its proper divisors (468261591).

31373522041 is an equidigital number, since it uses as much as digits as its factorization.

31373522041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468261590.

The product of its (nonzero) digits is 15120, while the sum is 31.

The spelling of 31373522041 in words is "thirty-one billion, three hundred seventy-three million, five hundred twenty-two thousand, forty-one".