123231970 has 8 divisors (see below), whose sum is σ = 221817564. Its totient is φ = 49292784.

The previous prime is 123231919. The next prime is 123231973. The reversal of 123231970 is 79132321.

It can be written as a sum of positive squares in 2 ways, for example, as 115498009 + 7733961 = 10747^2 + 2781^2 .

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

It is a super-2 number, since 2×123231970² = 30372236860161800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123231973) 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, 6161589 + ... + 6161608.

Almost surely, 2^123231970 is an apocalyptic number.

123231970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123231970 is a deficient number, since it is larger than the sum of its proper divisors (98585594).

123231970 is a wasteful number, since it uses less digits than its factorization.

123231970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12323204.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 123231970 is about 11100.9895955271. The cubic root of 123231970 is about 497.6314240803.

The spelling of 123231970 in words is "one hundred twenty-three million, two hundred thirty-one thousand, nine hundred seventy".