20210112013 has 16 divisors (see below), whose sum is σ = 24953999616. Its totient is φ = 15938979840.

The previous prime is 20210111981. The next prime is 20210112017. The reversal of 20210112013 is 31021101202.

It is not a de Polignac number, because 20210112013 - 2⁵ = 20210111981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 20210111984 and 20210112002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210112017) 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, 328756 + ... + 385357.

It is an arithmetic number, because the mean of its divisors is an integer number (1559624976).

Almost surely, 2^20210112013 is an apocalyptic number.

It is an amenable number.

20210112013 is a deficient number, since it is larger than the sum of its proper divisors (4743887603).

20210112013 is a wasteful number, since it uses less digits than its factorization.

20210112013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714444.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20210112013 its reverse (31021101202), we get a palindrome (51231213215).

The spelling of 20210112013 in words is "twenty billion, two hundred ten million, one hundred twelve thousand, thirteen".