231142030242439 has 2 divisors, whose sum is σ = 231142030242440. Its totient is φ = 231142030242438.

The previous prime is 231142030242427. The next prime is 231142030242451. The reversal of 231142030242439 is 934242030241132.

It is a balanced prime because it is at equal distance from previous prime (231142030242427) and next prime (231142030242451).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231142030242439 is a prime.

It is a super-2 number, since 2×231142030242439² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231142030842439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115571015121219 + 115571015121220.

It is an arithmetic number, because the mean of its divisors is an integer number (115571015121220).

Almost surely, 2^{231142030242439} is an apocalyptic number.

231142030242439 is a deficient number, since it is larger than the sum of its proper divisors (1).

231142030242439 is an equidigital number, since it uses as much as digits as its factorization.

231142030242439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 231142030242439 in words is "two hundred thirty-one trillion, one hundred forty-two billion, thirty million, two hundred forty-two thousand, four hundred thirty-nine".