20101062613 has 2 divisors, whose sum is σ = 20101062614. Its totient is φ = 20101062612.

The previous prime is 20101062607. The next prime is 20101062623. The reversal of 20101062613 is 31626010102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13354575844 + 6746486769 = 115562^2 + 82137^2 .

It is a cyclic number.

It is not a de Polignac number, because 20101062613 - 2²⁹ = 19564191701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20101062623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050531306 + 10050531307.

It is an arithmetic number, because the mean of its divisors is an integer number (10050531307).

Almost surely, 2^20101062613 is an apocalyptic number.

It is an amenable number.

20101062613 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101062613 is an equidigital number, since it uses as much as digits as its factorization.

20101062613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 20101062613 its reverse (31626010102), we get a palindrome (51727072715).

The spelling of 20101062613 in words is "twenty billion, one hundred one million, sixty-two thousand, six hundred thirteen".