123031223013 has 8 divisors (see below), whose sum is σ = 172675400800. Its totient is φ = 77703930288.

The previous prime is 123031223011. The next prime is 123031223027. The reversal of 123031223013 is 310322130321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123031223013 - 2¹ = 123031223011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123031223011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1079221198 + ... + 1079221311.

It is an arithmetic number, because the mean of its divisors is an integer number (21584425100).

Almost surely, 2^123031223013 is an apocalyptic number.

It is an amenable number.

123031223013 is a deficient number, since it is larger than the sum of its proper divisors (49644177787).

123031223013 is a wasteful number, since it uses less digits than its factorization.

123031223013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158442531.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 123031223013 its reverse (310322130321), we get a palindrome (433353353334).

The spelling of 123031223013 in words is "one hundred twenty-three billion, thirty-one million, two hundred twenty-three thousand, thirteen".