31113010101 has 4 divisors (see below), whose sum is σ = 41484013472. Its totient is φ = 20742006732.

The previous prime is 31113010081. The next prime is 31113010111. The reversal of 31113010101 is 10101031113.

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 not a de Polignac number, because 31113010101 - 2¹⁰ = 31113009077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31113010111) 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, 5185501681 + ... + 5185501686.

It is an arithmetic number, because the mean of its divisors is an integer number (10371003368).

Almost surely, 2^31113010101 is an apocalyptic number.

It is an amenable number.

31113010101 is a deficient number, since it is larger than the sum of its proper divisors (10371003371).

31113010101 is a wasteful number, since it uses less digits than its factorization.

31113010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10371003370.

The product of its (nonzero) digits is 9, while the sum is 12.

Adding to 31113010101 its reverse (10101031113), we get a palindrome (41214041214).

The spelling of 31113010101 in words is "thirty-one billion, one hundred thirteen million, ten thousand, one hundred one".