1230023131 has 4 divisors (see below), whose sum is σ = 1230109000. Its totient is φ = 1229937264.

The previous prime is 1230023129. The next prime is 1230023149. The reversal of 1230023131 is 1313200321.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1313200321 = 2833 ⋅463537.

It is a cyclic number.

It is not a de Polignac number, because 1230023131 - 2¹ = 1230023129 is a prime.

It is a super-2 number, since 2×1230023131² = 3025913805590086322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230023191) 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, 15681 + ... + 52018.

It is an arithmetic number, because the mean of its divisors is an integer number (307527250).

Almost surely, 2^1230023131 is an apocalyptic number.

1230023131 is a deficient number, since it is larger than the sum of its proper divisors (85869).

1230023131 is an equidigital number, since it uses as much as digits as its factorization.

1230023131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85868.

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

The square root of 1230023131 is about 35071.6856024914. The cubic root of 1230023131 is about 1071.4479860465.

Adding to 1230023131 its reverse (1313200321), we get a palindrome (2543223452).

The spelling of 1230023131 in words is "one billion, two hundred thirty million, twenty-three thousand, one hundred thirty-one".