23011012221013 has 2 divisors, whose sum is σ = 23011012221014. Its totient is φ = 23011012221012.

The previous prime is 23011012220969. The next prime is 23011012221107. The reversal of 23011012221013 is 31012221011032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20246913117649 + 2764099103364 = 4499657^2 + 1662558^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23011012221013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23011012291013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11505506110506 + 11505506110507.

It is an arithmetic number, because the mean of its divisors is an integer number (11505506110507).

Almost surely, 2^{23011012221013} is an apocalyptic number.

It is an amenable number.

23011012221013 is a deficient number, since it is larger than the sum of its proper divisors (1).

23011012221013 is an equidigital number, since it uses as much as digits as its factorization.

23011012221013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 23011012221013 its reverse (31012221011032), we get a palindrome (54023233232045).

The spelling of 23011012221013 in words is "twenty-three trillion, eleven billion, twelve million, two hundred twenty-one thousand, thirteen".