231320234153 has 2 divisors, whose sum is σ = 231320234154. Its totient is φ = 231320234152.

The previous prime is 231320234099. The next prime is 231320234161. The reversal of 231320234153 is 351432023132.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187305452944 + 44014781209 = 432788^2 + 209797^2 .

It is a cyclic number.

It is not a de Polignac number, because 231320234153 - 2¹⁴ = 231320217769 is a prime.

It is not a weakly prime, because it can be changed into another prime (231320234053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115660117076 + 115660117077.

It is an arithmetic number, because the mean of its divisors is an integer number (115660117077).

Almost surely, 2^231320234153 is an apocalyptic number.

It is an amenable number.

231320234153 is a deficient number, since it is larger than the sum of its proper divisors (1).

231320234153 is an equidigital number, since it uses as much as digits as its factorization.

231320234153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 231320234153 its reverse (351432023132), we get a palindrome (582752257285).

The spelling of 231320234153 in words is "two hundred thirty-one billion, three hundred twenty million, two hundred thirty-four thousand, one hundred fifty-three".