123051024431 has 4 divisors (see below), whose sum is σ = 126376727832. Its totient is φ = 119725321032.

The previous prime is 123051024419. The next prime is 123051024451. The reversal of 123051024431 is 134420150321.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123051024431 is a prime.

It is a super-2 number, since 2×123051024431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123051024431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123051024451) 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, 1662851645 + ... + 1662851718.

It is an arithmetic number, because the mean of its divisors is an integer number (31594181958).

Almost surely, 2^123051024431 is an apocalyptic number.

123051024431 is a deficient number, since it is larger than the sum of its proper divisors (3325703401).

123051024431 is an equidigital number, since it uses as much as digits as its factorization.

123051024431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3325703400.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 123051024431 its reverse (134420150321), we get a palindrome (257471174752).

The spelling of 123051024431 in words is "one hundred twenty-three billion, fifty-one million, twenty-four thousand, four hundred thirty-one".