20013141979 has 2 divisors, whose sum is σ = 20013141980. Its totient is φ = 20013141978.

The previous prime is 20013141977. The next prime is 20013141983. The reversal of 20013141979 is 97914131002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20013141979 - 2¹ = 20013141977 is a prime.

It is a super-2 number, since 2×20013141979² (a number of 21 digits) contains 22 as substring.

Together with 20013141977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20013141971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006570989 + 10006570990.

It is an arithmetic number, because the mean of its divisors is an integer number (10006570990).

Almost surely, 2^20013141979 is an apocalyptic number.

20013141979 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013141979 is an equidigital number, since it uses as much as digits as its factorization.

20013141979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 37.

The spelling of 20013141979 in words is "twenty billion, thirteen million, one hundred forty-one thousand, nine hundred seventy-nine".