31018941 has 24 divisors (see below), whose sum is σ = 46914816. Its totient is φ = 19725120.

The previous prime is 31018937. The next prime is 31018957. The reversal of 31018941 is 14981013.

It is not a de Polignac number, because 31018941 - 2² = 31018937 is a prime.

It is a super-2 number, since 2×31018941² = 1924349401522962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31018901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19606 + ... + 21128.

It is an arithmetic number, because the mean of its divisors is an integer number (1954784).

Almost surely, 2^31018941 is an apocalyptic number.

31018941 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31018941 is a deficient number, since it is larger than the sum of its proper divisors (15895875).

31018941 is a wasteful number, since it uses less digits than its factorization.

31018941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633 (or 1630 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 31018941 is about 5569.4650551018. The cubic root of 31018941 is about 314.2020316657.

Adding to 31018941 its reverse (14981013), we get a palindrome (45999954).

The spelling of 31018941 in words is "thirty-one million, eighteen thousand, nine hundred forty-one".