623052121 has 4 divisors (see below), whose sum is σ = 625797072. Its totient is φ = 620307172.

The previous prime is 623052107. The next prime is 623052127. The reversal of 623052121 is 121250326.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 623052121 - 2¹¹ = 623050073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 623052092 and 623052101.

It is not an unprimeable number, because it can be changed into a prime (623052127) 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, 1372135 + ... + 1372588.

It is an arithmetic number, because the mean of its divisors is an integer number (156449268).

Almost surely, 2^623052121 is an apocalyptic number.

It is an amenable number.

623052121 is a deficient number, since it is larger than the sum of its proper divisors (2744951).

623052121 is a wasteful number, since it uses less digits than its factorization.

623052121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744950.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 623052121 is about 24961.0120187464. The cubic root of 623052121 is about 854.0988286631.

The spelling of 623052121 in words is "six hundred twenty-three million, fifty-two thousand, one hundred twenty-one".