1015123245211 has 2 divisors, whose sum is σ = 1015123245212. Its totient is φ = 1015123245210.

The previous prime is 1015123245127. The next prime is 1015123245221. The reversal of 1015123245211 is 1125423215101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1015123245211 - 2⁷ = 1015123245083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1015123245211.

It is not a weakly prime, because it can be changed into another prime (1015123245221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507561622605 + 507561622606.

It is an arithmetic number, because the mean of its divisors is an integer number (507561622606).

Almost surely, 2^{1015123245211} is an apocalyptic number.

1015123245211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1015123245211 is an equidigital number, since it uses as much as digits as its factorization.

1015123245211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 28.

The spelling of 1015123245211 in words is "one trillion, fifteen billion, one hundred twenty-three million, two hundred forty-five thousand, two hundred eleven".