1215031135223 has 16 divisors (see below), whose sum is σ = 1361779776000. Its totient is φ = 1077319009152.

The previous prime is 1215031135081. The next prime is 1215031135229. The reversal of 1215031135223 is 3225311305121.

It is a cyclic number.

It is not a de Polignac number, because 1215031135223 - 2¹⁶ = 1215031069687 is a prime.

It is a super-2 number, since 2×1215031135223² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215031135229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10449743 + ... + 10565376.

It is an arithmetic number, because the mean of its divisors is an integer number (85111236000).

Almost surely, 2^{1215031135223} is an apocalyptic number.

1215031135223 is a deficient number, since it is larger than the sum of its proper divisors (146748640777).

1215031135223 is a wasteful number, since it uses less digits than its factorization.

1215031135223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21015334.

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 1215031135223 in words is "one trillion, two hundred fifteen billion, thirty-one million, one hundred thirty-five thousand, two hundred twenty-three".