20241321979 has 2 divisors, whose sum is σ = 20241321980. Its totient is φ = 20241321978.

The previous prime is 20241321977. The next prime is 20241322033. The reversal of 20241321979 is 97912314202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20241321979 - 2¹ = 20241321977 is a prime.

It is a super-2 number, since 2×20241321979² (a number of 21 digits) contains 22 as substring.

Together with 20241321977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20241321977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10120660989 + 10120660990.

It is an arithmetic number, because the mean of its divisors is an integer number (10120660990).

Almost surely, 2^20241321979 is an apocalyptic number.

20241321979 is a deficient number, since it is larger than the sum of its proper divisors (1).

20241321979 is an equidigital number, since it uses as much as digits as its factorization.

20241321979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 20241321979 in words is "twenty billion, two hundred forty-one million, three hundred twenty-one thousand, nine hundred seventy-nine".