122154352431 has 32 divisors (see below), whose sum is σ = 173361876480. Its totient is φ = 76242668544.

The previous prime is 122154352429. The next prime is 122154352471. The reversal of 122154352431 is 134253451221.

It is not a de Polignac number, because 122154352431 - 2¹ = 122154352429 is a prime.

It is a super-2 number, since 2×122154352431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122154352392 and 122154352401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122154352471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13815510 + ... + 13824348.

It is an arithmetic number, because the mean of its divisors is an integer number (5417558640).

Almost surely, 2^122154352431 is an apocalyptic number.

122154352431 is a deficient number, since it is larger than the sum of its proper divisors (51207524049).

122154352431 is a wasteful number, since it uses less digits than its factorization.

122154352431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10255.

The product of its digits is 28800, while the sum is 33.

The spelling of 122154352431 in words is "one hundred twenty-two billion, one hundred fifty-four million, three hundred fifty-two thousand, four hundred thirty-one".