1011102111949 has 2 divisors, whose sum is σ = 1011102111950. Its totient is φ = 1011102111948.

The previous prime is 1011102111941. The next prime is 1011102112061. The reversal of 1011102111949 is 9491112011101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 992583801225 + 18518310724 = 996285^2 + 136082^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011102111949 - 2³ = 1011102111941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1011102111949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011102111941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505551055974 + 505551055975.

It is an arithmetic number, because the mean of its divisors is an integer number (505551055975).

Almost surely, 2^{1011102111949} is an apocalyptic number.

It is an amenable number.

1011102111949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011102111949 is an equidigital number, since it uses as much as digits as its factorization.

1011102111949 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 31.

The spelling of 1011102111949 in words is "one trillion, eleven billion, one hundred two million, one hundred eleven thousand, nine hundred forty-nine".