123245005122251 has 2 divisors, whose sum is σ = 123245005122252. Its totient is φ = 123245005122250.

The previous prime is 123245005122241. The next prime is 123245005122329. The reversal of 123245005122251 is 152221500542321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123245005122251 - 2⁴⁶ = 52876260944587 is a prime.

It is not a weakly prime, because it can be changed into another prime (123245005122241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61622502561125 + 61622502561126.

It is an arithmetic number, because the mean of its divisors is an integer number (61622502561126).

Almost surely, 2^{123245005122251} is an apocalyptic number.

123245005122251 is a deficient number, since it is larger than the sum of its proper divisors (1).

123245005122251 is an equidigital number, since it uses as much as digits as its factorization.

123245005122251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 123245005122251 its reverse (152221500542321), we get a palindrome (275466505664572).

The spelling of 123245005122251 in words is "one hundred twenty-three trillion, two hundred forty-five billion, five million, one hundred twenty-two thousand, two hundred fifty-one".