1202103031091 has 2 divisors, whose sum is σ = 1202103031092. Its totient is φ = 1202103031090.

The previous prime is 1202103031037. The next prime is 1202103031147. The reversal of 1202103031091 is 1901303012021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1202103031091 - 2⁶ = 1202103031027 is a prime.

It is not a weakly prime, because it can be changed into another prime (1202103031021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601051515545 + 601051515546.

It is an arithmetic number, because the mean of its divisors is an integer number (601051515546).

Almost surely, 2^{1202103031091} is an apocalyptic number.

1202103031091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202103031091 is an equidigital number, since it uses as much as digits as its factorization.

1202103031091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 1202103031091 in words is "one trillion, two hundred two billion, one hundred three million, thirty-one thousand, ninety-one".