1131012515554 has 16 divisors (see below), whose sum is σ = 1779266668608. Its totient is φ = 538173242992.

The previous prime is 1131012515543. The next prime is 1131012515587. The reversal of 1131012515554 is 4555152101311.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62395072 + ... + 62413195.

It is an arithmetic number, because the mean of its divisors is an integer number (111204166788).

Almost surely, 2^{1131012515554} is an apocalyptic number.

1131012515554 is a deficient number, since it is larger than the sum of its proper divisors (648254153054).

1131012515554 is a wasteful number, since it uses less digits than its factorization.

1131012515554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124808489.

The product of its (nonzero) digits is 15000, while the sum is 34.

Adding to 1131012515554 its reverse (4555152101311), we get a palindrome (5686164616865).

The spelling of 1131012515554 in words is "one trillion, one hundred thirty-one billion, twelve million, five hundred fifteen thousand, five hundred fifty-four".