23021351 has 2 divisors, whose sum is σ = 23021352. Its totient is φ = 23021350.

The previous prime is 23021347. The next prime is 23021357. The reversal of 23021351 is 15312032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23021351 - 2² = 23021347 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23021357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11510675 + 11510676.

It is an arithmetic number, because the mean of its divisors is an integer number (11510676).

Almost surely, 2^23021351 is an apocalyptic number.

23021351 is a deficient number, since it is larger than the sum of its proper divisors (1).

23021351 is an equidigital number, since it uses as much as digits as its factorization.

23021351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 23021351 is about 4798.0570025793. The cubic root of 23021351 is about 284.4746699053.

Adding to 23021351 its reverse (15312032), we get a palindrome (38333383).

The spelling of 23021351 in words is "twenty-three million, twenty-one thousand, three hundred fifty-one".