20120000279 has 2 divisors, whose sum is σ = 20120000280. Its totient is φ = 20120000278.

The previous prime is 20120000221. The next prime is 20120000321. The reversal of 20120000279 is 97200002102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20120000279 - 2³² = 15825032983 is a prime.

It is a super-2 number, since 2×20120000279² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20120000179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060000139 + 10060000140.

It is an arithmetic number, because the mean of its divisors is an integer number (10060000140).

Almost surely, 2^20120000279 is an apocalyptic number.

20120000279 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120000279 is an equidigital number, since it uses as much as digits as its factorization.

20120000279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The spelling of 20120000279 in words is "twenty billion, one hundred twenty million, two hundred seventy-nine", and thus it is an aban number.