31942011 has 8 divisors (see below), whose sum is σ = 43068240. Its totient is φ = 21055232.

The previous prime is 31942007. The next prime is 31942019. The reversal of 31942011 is 11024913.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31942011 - 2² = 31942007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31942019) 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 7 ways as a sum of consecutive naturals, for example, 59550 + ... + 60083.

It is an arithmetic number, because the mean of its divisors is an integer number (5383530).

Almost surely, 2^31942011 is an apocalyptic number.

31942011 is a deficient number, since it is larger than the sum of its proper divisors (11126229).

31942011 is a wasteful number, since it uses less digits than its factorization.

31942011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119725.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 31942011 is about 5651.7263734190. The cubic root of 31942011 is about 317.2883198525.

Adding to 31942011 its reverse (11024913), we get a palindrome (42966924).

The spelling of 31942011 in words is "thirty-one million, nine hundred forty-two thousand, eleven".