1232123019 has 8 divisors (see below), whose sum is σ = 1670675520. Its totient is φ = 807492936.

The previous prime is 1232122973. The next prime is 1232123023. The reversal of 1232123019 is 9103212321.

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

It is not a de Polignac number, because 1232123019 - 2¹⁷ = 1231991947 is a prime.

It is a super-2 number, since 2×1232123019² = 3036254267899348722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1232123019.

It is not an unprimeable number, because it can be changed into a prime (1232123069) 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, 3480397 + ... + 3480750.

It is an arithmetic number, because the mean of its divisors is an integer number (208834440).

Almost surely, 2^1232123019 is an apocalyptic number.

1232123019 is a deficient number, since it is larger than the sum of its proper divisors (438552501).

1232123019 is an equidigital number, since it uses as much as digits as its factorization.

1232123019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6961209.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1232123019 is about 35101.6099203441. The cubic root of 1232123019 is about 1072.0573625627.

It can be divided in two parts, 1232 and 123019, that added together give a triangular number (124251 = T₄₉₈).

The spelling of 1232123019 in words is "one billion, two hundred thirty-two million, one hundred twenty-three thousand, nineteen".