123003201031 has 4 divisors (see below), whose sum is σ = 123004445200. Its totient is φ = 123001956864.

The previous prime is 123003201029. The next prime is 123003201067. The reversal of 123003201031 is 130102300321.

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 123003201031 - 2¹ = 123003201029 is a prime.

It is a super-2 number, since 2×123003201031² (a number of 23 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 = 123003200996 and 123003201014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123003201331) 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, 459651 + ... + 676228.

It is an arithmetic number, because the mean of its divisors is an integer number (30751111300).

Almost surely, 2^123003201031 is an apocalyptic number.

123003201031 is a deficient number, since it is larger than the sum of its proper divisors (1244169).

123003201031 is a wasteful number, since it uses less digits than its factorization.

123003201031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244168.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 123003201031 its reverse (130102300321), we get a palindrome (253105501352).

The spelling of 123003201031 in words is "one hundred twenty-three billion, three million, two hundred one thousand, thirty-one".