123020951 has 8 divisors (see below), whose sum is σ = 131501664. Its totient is φ = 114801280.

The previous prime is 123020941. The next prime is 123020981. The reversal of 123020951 is 159020321.

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

It is a de Polignac number, because none of the positive numbers 2^k-123020951 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123020941) 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, 64286 + ... + 66171.

It is an arithmetic number, because the mean of its divisors is an integer number (16437708).

Almost surely, 2^123020951 is an apocalyptic number.

123020951 is a deficient number, since it is larger than the sum of its proper divisors (8480713).

123020951 is a wasteful number, since it uses less digits than its factorization.

123020951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130521.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 123020951 is about 11091.4810102168. The cubic root of 123020951 is about 497.3472183905.

The spelling of 123020951 in words is "one hundred twenty-three million, twenty thousand, nine hundred fifty-one".