1230023139 has 16 divisors (see below), whose sum is σ = 1699488000. Its totient is φ = 790383776.

The previous prime is 1230023129. The next prime is 1230023149. The reversal of 1230023139 is 9313200321.

It is an interprime number because it is at equal distance from previous prime (1230023129) and next prime (1230023149).

It is a cyclic number.

It is not a de Polignac number, because 1230023139 - 2⁵ = 1230023107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1230023129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40312 + ... + 63914.

It is an arithmetic number, because the mean of its divisors is an integer number (106218000).

Almost surely, 2^1230023139 is an apocalyptic number.

1230023139 is a deficient number, since it is larger than the sum of its proper divisors (469464861).

1230023139 is a wasteful number, since it uses less digits than its factorization.

1230023139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24234.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 1230023139 is about 35071.6857165435. The cubic root of 1230023139 is about 1071.4479883694.

The spelling of 1230023139 in words is "one billion, two hundred thirty million, twenty-three thousand, one hundred thirty-nine".