23021002 has 4 divisors (see below), whose sum is σ = 34531506. Its totient is φ = 11510500.

The previous prime is 23020997. The next prime is 23021029. The reversal of 23021002 is 20012032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18740241 + 4280761 = 4329^2 + 2069^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23021002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5755249 + ... + 5755252.

Almost surely, 2^23021002 is an apocalyptic number.

23021002 is a deficient number, since it is larger than the sum of its proper divisors (11510504).

23021002 is a wasteful number, since it uses less digits than its factorization.

23021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11510503.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 23021002 is about 4798.0206335530. The cubic root of 23021002 is about 284.4732323678.

Adding to 23021002 its reverse (20012032), we get a palindrome (43033034).

The spelling of 23021002 in words is "twenty-three million, twenty-one thousand, two".