20232311213 has 16 divisors (see below), whose sum is σ = 21159775152. Its totient is φ = 19331520000.

The previous prime is 20232311147. The next prime is 20232311233. The reversal of 20232311213 is 31211323202.

It can be written as a sum of positive squares in 8 ways, for example, as 2006771209 + 18225540004 = 44797^2 + 135002^2 .

It is a cyclic number.

It is not a de Polignac number, because 20232311213 - 2³⁰ = 19158569389 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 (20232311233) 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, 295553 + ... + 357513.

It is an arithmetic number, because the mean of its divisors is an integer number (1322485947).

Almost surely, 2^20232311213 is an apocalyptic number.

It is an amenable number.

20232311213 is a deficient number, since it is larger than the sum of its proper divisors (927463939).

20232311213 is a wasteful number, since it uses less digits than its factorization.

20232311213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62176.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20232311213 its reverse (31211323202), we get a palindrome (51443634415).

The spelling of 20232311213 in words is "twenty billion, two hundred thirty-two million, three hundred eleven thousand, two hundred thirteen".