31021949341 has 4 divisors (see below), whose sum is σ = 31027257184. Its totient is φ = 31016641500.

The previous prime is 31021949303. The next prime is 31021949359. The reversal of 31021949341 is 14394912013.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 31021949341 - 2³¹ = 28874465693 is a prime.

It is a super-2 number, since 2×31021949341² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31021949341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31021949041) 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, 2645145 + ... + 2656846.

It is an arithmetic number, because the mean of its divisors is an integer number (7756814296).

Almost surely, 2^31021949341 is an apocalyptic number.

It is an amenable number.

31021949341 is a deficient number, since it is larger than the sum of its proper divisors (5307843).

31021949341 is an equidigital number, since it uses as much as digits as its factorization.

31021949341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5307842.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 31021949341 in words is "thirty-one billion, twenty-one million, nine hundred forty-nine thousand, three hundred forty-one".