1123511351015 has 4 divisors (see below), whose sum is σ = 1348213621224. Its totient is φ = 898809080808.

The previous prime is 1123511350987. The next prime is 1123511351021. The reversal of 1123511351015 is 5101531153211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123511351015 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112351135097 + ... + 112351135106.

It is an arithmetic number, because the mean of its divisors is an integer number (337053405306).

Almost surely, 2^{1123511351015} is an apocalyptic number.

1123511351015 is a deficient number, since it is larger than the sum of its proper divisors (224702270209).

1123511351015 is an equidigital number, since it uses as much as digits as its factorization.

1123511351015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224702270208.

The product of its (nonzero) digits is 2250, while the sum is 29.

The spelling of 1123511351015 in words is "one trillion, one hundred twenty-three billion, five hundred eleven million, three hundred fifty-one thousand, fifteen".