1320923123 has 8 divisors (see below), whose sum is σ = 1425624816. Its totient is φ = 1216663200.

The previous prime is 1320923119. The next prime is 1320923141. The reversal of 1320923123 is 3213290231.

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

It is a cyclic number.

It is not a de Polignac number, because 1320923123 - 2² = 1320923119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320923092 and 1320923101.

It is not an unprimeable number, because it can be changed into a prime (1320923323) 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, 104213 + ... + 116198.

It is an arithmetic number, because the mean of its divisors is an integer number (178203102).

Almost surely, 2^1320923123 is an apocalyptic number.

1320923123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1320923123 is a deficient number, since it is larger than the sum of its proper divisors (104701693).

1320923123 is a wasteful number, since it uses less digits than its factorization.

1320923123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220885.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 1320923123 is about 36344.5060910174. The cubic root of 1320923123 is about 1097.2169656005.

The spelling of 1320923123 in words is "one billion, three hundred twenty million, nine hundred twenty-three thousand, one hundred twenty-three".