2111202320231 has 2 divisors, whose sum is σ = 2111202320232. Its totient is φ = 2111202320230.

The previous prime is 2111202320167. The next prime is 2111202320257. The reversal of 2111202320231 is 1320232021112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2111202320231 - 2⁶ = 2111202320167 is a prime.

It is a super-2 number, since 2×2111202320231² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111202320281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055601160115 + 1055601160116.

It is an arithmetic number, because the mean of its divisors is an integer number (1055601160116).

Almost surely, 2^{2111202320231} is an apocalyptic number.

2111202320231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111202320231 is an equidigital number, since it uses as much as digits as its factorization.

2111202320231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2111202320231 its reverse (1320232021112), we get a palindrome (3431434341343).

The spelling of 2111202320231 in words is "two trillion, one hundred eleven billion, two hundred two million, three hundred twenty thousand, two hundred thirty-one".