1123215755513 has 8 divisors (see below), whose sum is σ = 1172143104000. Its totient is φ = 1074296063808.

The previous prime is 1123215755491. The next prime is 1123215755551. The reversal of 1123215755513 is 3155575123211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1123215755513 - 2¹² = 1123215751417 is a prime.

It is a super-2 number, since 2×1123215755513² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123215755213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1613408 + ... + 2202161.

It is an arithmetic number, because the mean of its divisors is an integer number (146517888000).

Almost surely, 2^{1123215755513} is an apocalyptic number.

It is an amenable number.

1123215755513 is a deficient number, since it is larger than the sum of its proper divisors (48927348487).

1123215755513 is a wasteful number, since it uses less digits than its factorization.

1123215755513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3828391.

The product of its digits is 157500, while the sum is 41.

The spelling of 1123215755513 in words is "one trillion, one hundred twenty-three billion, two hundred fifteen million, seven hundred fifty-five thousand, five hundred thirteen".