31052011 has 16 divisors (see below), whose sum is σ = 33242400. Its totient is φ = 28956928.

The previous prime is 31051973. The next prime is 31052017. The reversal of 31052011 is 11025013.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31052011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31051982 and 31052000.

It is not an unprimeable number, because it can be changed into a prime (31052017) 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, 136680 + ... + 136906.

It is an arithmetic number, because the mean of its divisors is an integer number (2077650).

Almost surely, 2^31052011 is an apocalyptic number.

31052011 is a deficient number, since it is larger than the sum of its proper divisors (2190389).

31052011 is a wasteful number, since it uses less digits than its factorization.

31052011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 31052011 is about 5572.4331310479. The cubic root of 31052011 is about 314.3136513241.

Adding to 31052011 its reverse (11025013), we get a palindrome (42077024).

The spelling of 31052011 in words is "thirty-one million, fifty-two thousand, eleven".