23402011 has 4 divisors (see below), whose sum is σ = 23416624. Its totient is φ = 23387400.

The previous prime is 23402009. The next prime is 23402039. The reversal of 23402011 is 11020432.

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

It is a cyclic number.

It is not a de Polignac number, because 23402011 - 2¹ = 23402009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23401982 and 23402000.

It is not an unprimeable number, because it can be changed into a prime (23402051) 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, 4560 + ... + 8221.

It is an arithmetic number, because the mean of its divisors is an integer number (5854156).

Almost surely, 2^23402011 is an apocalyptic number.

23402011 is a deficient number, since it is larger than the sum of its proper divisors (14613).

23402011 is a wasteful number, since it uses less digits than its factorization.

23402011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14612.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 23402011 is about 4837.5625060561. The cubic root of 23402011 is about 286.0340440671.

Adding to 23402011 its reverse (11020432), we get a palindrome (34422443).

The spelling of 23402011 in words is "twenty-three million, four hundred two thousand, eleven".