20012301031 has 4 divisors (see below), whose sum is σ = 20055154392. Its totient is φ = 19969447672.

The previous prime is 20012300969. The next prime is 20012301061. The reversal of 20012301031 is 13010321002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20012301031 - 2²¹ = 20010203879 is a prime.

It is a super-2 number, since 2×20012301031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012301061) 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, 21425980 + ... + 21426913.

It is an arithmetic number, because the mean of its divisors is an integer number (5013788598).

Almost surely, 2^20012301031 is an apocalyptic number.

20012301031 is a deficient number, since it is larger than the sum of its proper divisors (42853361).

20012301031 is an equidigital number, since it uses as much as digits as its factorization.

20012301031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42853360.

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

Adding to 20012301031 its reverse (13010321002), we get a palindrome (33022622033).

It can be divided in two parts, 2001 and 2301031, that added together give a palindrome (2303032).

The spelling of 20012301031 in words is "twenty billion, twelve million, three hundred one thousand, thirty-one".