31200230123 has 4 divisors (see below), whose sum is σ = 31380578448. Its totient is φ = 31019881800.

The previous prime is 31200230099. The next prime is 31200230141. The reversal of 31200230123 is 32103200213.

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 31200230123 - 2¹⁴ = 31200213739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31200232123) 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, 90173903 + ... + 90174248.

It is an arithmetic number, because the mean of its divisors is an integer number (7845144612).

Almost surely, 2^31200230123 is an apocalyptic number.

31200230123 is a deficient number, since it is larger than the sum of its proper divisors (180348325).

31200230123 is a wasteful number, since it uses less digits than its factorization.

31200230123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180348324.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31200230123 its reverse (32103200213), we get a palindrome (63303430336).

The spelling of 31200230123 in words is "thirty-one billion, two hundred million, two hundred thirty thousand, one hundred twenty-three".