31013101 has 16 divisors (see below), whose sum is σ = 36273024. Its totient is φ = 25968384.

The previous prime is 31013089. The next prime is 31013137. The reversal of 31013101 is 10131013.

It is a cyclic number.

It is not a de Polignac number, because 31013101 - 2⁷ = 31012973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31013401) 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, 69786 + ... + 70228.

It is an arithmetic number, because the mean of its divisors is an integer number (2267064).

Almost surely, 2^31013101 is an apocalyptic number.

It is an amenable number.

31013101 is a deficient number, since it is larger than the sum of its proper divisors (5259923).

31013101 is a wasteful number, since it uses less digits than its factorization.

31013101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 31013101 is about 5568.9407430857. The cubic root of 31013101 is about 314.1823119399.

Adding to 31013101 its reverse (10131013), we get a palindrome (41144114).

It can be divided in two parts, 31013 and 101, that multiplied together give a palindrome (3132313).

The spelling of 31013101 in words is "thirty-one million, thirteen thousand, one hundred one".