233123131019 has 2 divisors, whose sum is σ = 233123131020. Its totient is φ = 233123131018.

The previous prime is 233123130881. The next prime is 233123131037. The reversal of 233123131019 is 910131321332.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 233123131019 - 2¹² = 233123126923 is a prime.

It is a super-2 number, since 2×233123131019² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 233123130982 and 233123131000.

It is not a weakly prime, because it can be changed into another prime (233123131819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116561565509 + 116561565510.

It is an arithmetic number, because the mean of its divisors is an integer number (116561565510).

Almost surely, 2^233123131019 is an apocalyptic number.

233123131019 is a deficient number, since it is larger than the sum of its proper divisors (1).

233123131019 is an equidigital number, since it uses as much as digits as its factorization.

233123131019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The spelling of 233123131019 in words is "two hundred thirty-three billion, one hundred twenty-three million, one hundred thirty-one thousand, nineteen".