122123031031 has 4 divisors (see below), whose sum is σ = 128550559000. Its totient is φ = 115695503064.

The previous prime is 122123031007. The next prime is 122123031071. The reversal of 122123031031 is 130130321221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130130321221 = 419 ⋅310573559.

It is a cyclic number.

It is not a de Polignac number, because 122123031031 - 2⁷ = 122123030903 is a prime.

It is a super-2 number, since 2×122123031031² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 6427527949 = 122123031031 / (1 + 2 + 2 + 1 + 2 + 3 + 0 + 3 + 1 + 0 + 3 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122123031071) 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, 3213763956 + ... + 3213763993.

It is an arithmetic number, because the mean of its divisors is an integer number (32137639750).

Almost surely, 2^122123031031 is an apocalyptic number.

122123031031 is a deficient number, since it is larger than the sum of its proper divisors (6427527969).

122123031031 is an equidigital number, since it uses as much as digits as its factorization.

122123031031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6427527968.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 122123031031 its reverse (130130321221), we get a palindrome (252253352252).

The spelling of 122123031031 in words is "one hundred twenty-two billion, one hundred twenty-three million, thirty-one thousand, thirty-one".