122323144251 has 48 divisors (see below), whose sum is σ = 207139057920. Its totient is φ = 63493657920.

The previous prime is 122323144219. The next prime is 122323144261. The reversal of 122323144251 is 152441323221.

It is a happy number.

It is not a de Polignac number, because 122323144251 - 2⁵ = 122323144219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122323144201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2035290 + ... + 2094528.

It is an arithmetic number, because the mean of its divisors is an integer number (4315397040).

Almost surely, 2^122323144251 is an apocalyptic number.

122323144251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122323144251 is a deficient number, since it is larger than the sum of its proper divisors (84815913669).

122323144251 is a wasteful number, since it uses less digits than its factorization.

122323144251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60544 (or 60537 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

Adding to 122323144251 its reverse (152441323221), we get a palindrome (274764467472).

The spelling of 122323144251 in words is "one hundred twenty-two billion, three hundred twenty-three million, one hundred forty-four thousand, two hundred fifty-one".