1131220210139 has 2 divisors, whose sum is σ = 1131220210140. Its totient is φ = 1131220210138.

The previous prime is 1131220210063. The next prime is 1131220210187. The reversal of 1131220210139 is 9310120221311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1131220210139 - 2¹² = 1131220206043 is a prime.

It is not a weakly prime, because it can be changed into another prime (1131220219139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565610105069 + 565610105070.

It is an arithmetic number, because the mean of its divisors is an integer number (565610105070).

Almost surely, 2^{1131220210139} is an apocalyptic number.

1131220210139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131220210139 is an equidigital number, since it uses as much as digits as its factorization.

1131220210139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 1131220210139 in words is "one trillion, one hundred thirty-one billion, two hundred twenty million, two hundred ten thousand, one hundred thirty-nine".