1131149971154 has 32 divisors (see below), whose sum is σ = 1994364343296. Its totient is φ = 471003422400.

The previous prime is 1131149971079. The next prime is 1131149971177. The reversal of 1131149971154 is 4511799411311.

It is a junction number, because it is equal to n+sod(n) for n = 1131149971099 and 1131149971108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1194434 + ... + 1920669.

It is an arithmetic number, because the mean of its divisors is an integer number (62323885728).

Almost surely, 2^{1131149971154} is an apocalyptic number.

1131149971154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1131149971154 is a deficient number, since it is larger than the sum of its proper divisors (863214372142).

1131149971154 is a wasteful number, since it uses less digits than its factorization.

1131149971154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3115850.

The product of its digits is 136080, while the sum is 47.

The spelling of 1131149971154 in words is "one trillion, one hundred thirty-one billion, one hundred forty-nine million, nine hundred seventy-one thousand, one hundred fifty-four".