13112024021 has 4 divisors (see below), whose sum is σ = 13112840844. Its totient is φ = 13111207200.

The previous prime is 13112023961. The next prime is 13112024033. The reversal of 13112024021 is 12042021131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 979001521 + 12133022500 = 31289^2 + 110150^2 .

It is a cyclic number.

It is not a de Polignac number, because 13112024021 - 2⁶ = 13112023957 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 (13112023021) 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, 383840 + ... + 416601.

It is an arithmetic number, because the mean of its divisors is an integer number (3278210211).

Almost surely, 2^13112024021 is an apocalyptic number.

It is an amenable number.

13112024021 is a deficient number, since it is larger than the sum of its proper divisors (816823).

13112024021 is an equidigital number, since it uses as much as digits as its factorization.

13112024021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816822.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 13112024021 its reverse (12042021131), we get a palindrome (25154045152).

The spelling of 13112024021 in words is "thirteen billion, one hundred twelve million, twenty-four thousand, twenty-one".