13621606123 has 2 divisors, whose sum is σ = 13621606124. Its totient is φ = 13621606122.

The previous prime is 13621606081. The next prime is 13621606127. The reversal of 13621606123 is 32160612631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13621606123 - 2¹³ = 13621597931 is a prime.

It is a super-2 number, since 2×13621606123² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13621606127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6810803061 + 6810803062.

It is an arithmetic number, because the mean of its divisors is an integer number (6810803062).

Almost surely, 2^13621606123 is an apocalyptic number.

13621606123 is a deficient number, since it is larger than the sum of its proper divisors (1).

13621606123 is an equidigital number, since it uses as much as digits as its factorization.

13621606123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 13621606123 in words is "thirteen billion, six hundred twenty-one million, six hundred six thousand, one hundred twenty-three".