1151111112240 has 80 divisors (see below), whose sum is σ = 3568558526208. Its totient is φ = 306953150208.

The previous prime is 1151111112181. The next prime is 1151111112251. The reversal of 1151111112240 is 422111111511.

It is a tau number, because it is divible by the number of its divisors (80).

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, 10453147 + ... + 10562693.

Almost surely, 2^{1151111112240} is an apocalyptic number.

1151111112240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151111112240 is an abundant number, since it is smaller than the sum of its proper divisors (2417447413968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1151111112240 is a wasteful number, since it uses less digits than its factorization.

1151111112240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153346 (or 153340 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 21.

Adding to 1151111112240 its reverse (422111111511), we get a palindrome (1573222223751).

The spelling of 1151111112240 in words is "one trillion, one hundred fifty-one billion, one hundred eleven million, one hundred twelve thousand, two hundred forty".