23001311402 has 4 divisors (see below), whose sum is σ = 34501967106. Its totient is φ = 11500655700.

The previous prime is 23001311387. The next prime is 23001311407. The reversal of 23001311402 is 20411310032.

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., 13257449881 + 9743861521 = 115141^2 + 98711^2 .

It is not an unprimeable number, because it can be changed into a prime (23001311407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5750327849 + ... + 5750327852.

Almost surely, 2^23001311402 is an apocalyptic number.

23001311402 is a deficient number, since it is larger than the sum of its proper divisors (11500655704).

23001311402 is a wasteful number, since it uses less digits than its factorization.

23001311402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11500655703.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23001311402 its reverse (20411310032), we get a palindrome (43412621434).

The spelling of 23001311402 in words is "twenty-three billion, one million, three hundred eleven thousand, four hundred two".