238930072331 has 2 divisors, whose sum is σ = 238930072332. Its totient is φ = 238930072330.

The previous prime is 238930072309. The next prime is 238930072357. The reversal of 238930072331 is 133270039832.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 238930072331 - 2¹⁰ = 238930071307 is a prime.

It is a super-2 number, since 2×238930072331² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (238930072301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119465036165 + 119465036166.

It is an arithmetic number, because the mean of its divisors is an integer number (119465036166).

Almost surely, 2^238930072331 is an apocalyptic number.

238930072331 is a deficient number, since it is larger than the sum of its proper divisors (1).

238930072331 is an equidigital number, since it uses as much as digits as its factorization.

238930072331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 41.

The spelling of 238930072331 in words is "two hundred thirty-eight billion, nine hundred thirty million, seventy-two thousand, three hundred thirty-one".