122140306523 has 2 divisors, whose sum is σ = 122140306524. Its totient is φ = 122140306522.

The previous prime is 122140306489. The next prime is 122140306529. The reversal of 122140306523 is 325603041221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122140306523 - 2²⁸ = 121871871067 is a prime.

It is not a weakly prime, because it can be changed into another prime (122140306529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61070153261 + 61070153262.

It is an arithmetic number, because the mean of its divisors is an integer number (61070153262).

Almost surely, 2^122140306523 is an apocalyptic number.

122140306523 is a deficient number, since it is larger than the sum of its proper divisors (1).

122140306523 is an equidigital number, since it uses as much as digits as its factorization.

122140306523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 122140306523 its reverse (325603041221), we get a palindrome (447743347744).

The spelling of 122140306523 in words is "one hundred twenty-two billion, one hundred forty million, three hundred six thousand, five hundred twenty-three".