122343402143531 has 4 divisors (see below), whose sum is σ = 122346656947200. Its totient is φ = 122340147339864.

The previous prime is 122343402143407. The next prime is 122343402143551. The reversal of 122343402143531 is 135341204343221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122343402143531 - 2³⁰ = 122342328401707 is a prime.

It is a super-2 number, since 2×122343402143531² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122343402143551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1627345451 + ... + 1627420628.

It is an arithmetic number, because the mean of its divisors is an integer number (30586664236800).

Almost surely, 2^{122343402143531} is an apocalyptic number.

122343402143531 is a deficient number, since it is larger than the sum of its proper divisors (3254803669).

122343402143531 is an equidigital number, since it uses as much as digits as its factorization.

122343402143531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3254803668.

The product of its (nonzero) digits is 207360, while the sum is 38.

Adding to 122343402143531 its reverse (135341204343221), we get a palindrome (257684606486752).

The spelling of 122343402143531 in words is "one hundred twenty-two trillion, three hundred forty-three billion, four hundred two million, one hundred forty-three thousand, five hundred thirty-one".