1091019200311 has 2 divisors, whose sum is σ = 1091019200312. Its totient is φ = 1091019200310.

The previous prime is 1091019200309. The next prime is 1091019200333. The reversal of 1091019200311 is 1130029101901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1091019200311 - 2¹ = 1091019200309 is a prime.

Together with 1091019200309, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1091019200311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1091019206311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545509600155 + 545509600156.

It is an arithmetic number, because the mean of its divisors is an integer number (545509600156).

Almost surely, 2^{1091019200311} is an apocalyptic number.

1091019200311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1091019200311 is an equidigital number, since it uses as much as digits as its factorization.

1091019200311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 28.

The spelling of 1091019200311 in words is "one trillion, ninety-one billion, nineteen million, two hundred thousand, three hundred eleven".