1123512411555 has 48 divisors (see below), whose sum is σ = 2047599927360. Its totient is φ = 569059948800.

The previous prime is 1123512411551. The next prime is 1123512411559. The reversal of 1123512411555 is 5551142153211.

1123512411555 is a `hidden beast` number, since 1 + 1 + 2 + 351 + 241 + 15 + 55 = 666.

It is an interprime number because it is at equal distance from previous prime (1123512411551) and next prime (1123512411559).

It is not a de Polignac number, because 1123512411555 - 2² = 1123512411551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1123512411551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6977191 + ... + 7136400.

It is an arithmetic number, because the mean of its divisors is an integer number (42658331820).

Almost surely, 2^{1123512411555} is an apocalyptic number.

1123512411555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1123512411555 is a deficient number, since it is larger than the sum of its proper divisors (924087515805).

1123512411555 is a wasteful number, since it uses less digits than its factorization.

1123512411555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14113692 (or 14113689 counting only the distinct ones).

The product of its digits is 30000, while the sum is 36.

Adding to 1123512411555 its reverse (5551142153211), we get a palindrome (6674654564766).

The spelling of 1123512411555 in words is "one trillion, one hundred twenty-three billion, five hundred twelve million, four hundred eleven thousand, five hundred fifty-five".