31012230001 has 4 divisors (see below), whose sum is σ = 31025792512. Its totient is φ = 30998667492.

The previous prime is 31012229999. The next prime is 31012230017. The reversal of 31012230001 is 10003221013.

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 a cyclic number.

It is not a de Polignac number, because 31012230001 - 2¹ = 31012229999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31012230401) 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, 6777825 + ... + 6782398.

It is an arithmetic number, because the mean of its divisors is an integer number (7756448128).

Almost surely, 2^31012230001 is an apocalyptic number.

It is an amenable number.

31012230001 is a deficient number, since it is larger than the sum of its proper divisors (13562511).

31012230001 is a wasteful number, since it uses less digits than its factorization.

31012230001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13562510.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 31012230001 its reverse (10003221013), we get a palindrome (41015451014).

The spelling of 31012230001 in words is "thirty-one billion, twelve million, two hundred thirty thousand, one".