162251531023 has 2 divisors, whose sum is σ = 162251531024. Its totient is φ = 162251531022.

The previous prime is 162251531021. The next prime is 162251531027. The reversal of 162251531023 is 320135152261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 162251531023 - 2¹ = 162251531021 is a prime.

Together with 162251531021, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162251531021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81125765511 + 81125765512.

It is an arithmetic number, because the mean of its divisors is an integer number (81125765512).

Almost surely, 2^162251531023 is an apocalyptic number.

162251531023 is a deficient number, since it is larger than the sum of its proper divisors (1).

162251531023 is an equidigital number, since it uses as much as digits as its factorization.

162251531023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 162251531023 its reverse (320135152261), we get a palindrome (482386683284).

The spelling of 162251531023 in words is "one hundred sixty-two billion, two hundred fifty-one million, five hundred thirty-one thousand, twenty-three".