1191113553154 has 16 divisors (see below), whose sum is σ = 2041929698688. Its totient is φ = 510472049472.

The previous prime is 1191113553139. The next prime is 1191113553169. The reversal of 1191113553154 is 4513553111911.

It is an interprime number because it is at equal distance from previous prime (1191113553139) and next prime (1191113553169).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1209579 + ... + 1960945.

It is an arithmetic number, because the mean of its divisors is an integer number (127620606168).

Almost surely, 2^{1191113553154} is an apocalyptic number.

1191113553154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1191113553154 is a deficient number, since it is larger than the sum of its proper divisors (850816145534).

1191113553154 is a wasteful number, since it uses less digits than its factorization.

1191113553154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864609.

The product of its digits is 40500, while the sum is 40.

The spelling of 1191113553154 in words is "one trillion, one hundred ninety-one billion, one hundred thirteen million, five hundred fifty-three thousand, one hundred fifty-four".