122311143130531 has 4 divisors (see below), whose sum is σ = 122395670528752. Its totient is φ = 122226615732312.

The previous prime is 122311143130507. The next prime is 122311143130549. The reversal of 122311143130531 is 135031341113221.

It is a happy number.

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 122311143130531 - 2¹⁵ = 122311143097763 is a prime.

It is a super-2 number, since 2×122311143130531² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122311143130493 and 122311143130502.

It is not an unprimeable number, because it can be changed into a prime (122311143130571) 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, 42263696940 + ... + 42263699833.

It is an arithmetic number, because the mean of its divisors is an integer number (30598917632188).

Almost surely, 2^{122311143130531} is an apocalyptic number.

122311143130531 is a deficient number, since it is larger than the sum of its proper divisors (84527398221).

122311143130531 is an equidigital number, since it uses as much as digits as its factorization.

122311143130531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84527398220.

The product of its (nonzero) digits is 6480, while the sum is 31.

Adding to 122311143130531 its reverse (135031341113221), we get a palindrome (257342484243752).

The spelling of 122311143130531 in words is "one hundred twenty-two trillion, three hundred eleven billion, one hundred forty-three million, one hundred thirty thousand, five hundred thirty-one".