30122423355531 has 32 divisors (see below), whose sum is σ = 44747956028160. Its totient is φ = 17896164177024.

The previous prime is 30122423355511. The next prime is 30122423355547. The reversal of 30122423355531 is 13555332422103.

It is not a de Polignac number, because 30122423355531 - 2⁷ = 30122423355403 is a prime.

It is a super-2 number, since 2×30122423355531² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 30122423355531.

It is not an unprimeable number, because it can be changed into a prime (30122423355511) 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, 12368020 + ... + 14601806.

It is an arithmetic number, because the mean of its divisors is an integer number (1398373625880).

Almost surely, 2^{30122423355531} is an apocalyptic number.

30122423355531 is a deficient number, since it is larger than the sum of its proper divisors (14625532672629).

30122423355531 is a wasteful number, since it uses less digits than its factorization.

30122423355531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245755.

The product of its (nonzero) digits is 324000, while the sum is 39.

Adding to 30122423355531 its reverse (13555332422103), we get a palindrome (43677755777634).

The spelling of 30122423355531 in words is "thirty trillion, one hundred twenty-two billion, four hundred twenty-three million, three hundred fifty-five thousand, five hundred thirty-one".