1215435054051 has 8 divisors (see below), whose sum is σ = 1800644524560. Its totient is φ = 810290036016.

The previous prime is 1215435054037. The next prime is 1215435054061. The reversal of 1215435054051 is 1504505345121.

1215435054051 is a `hidden beast` number, since 1 + 2 + 15 + 4 + 3 + 50 + 540 + 51 = 666.

It is not a de Polignac number, because 1215435054051 - 2³¹ = 1213287570403 is a prime.

It is a super-3 number, since 3×1215435054051³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1215435053997 and 1215435054015.

It is not an unprimeable number, because it can be changed into a prime (1215435054011) 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, 22508056530 + ... + 22508056583.

It is an arithmetic number, because the mean of its divisors is an integer number (225080565570).

Almost surely, 2^{1215435054051} is an apocalyptic number.

1215435054051 is a deficient number, since it is larger than the sum of its proper divisors (585209470509).

1215435054051 is an equidigital number, since it uses as much as digits as its factorization.

1215435054051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45016113122 (or 45016113116 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 1215435054051 in words is "one trillion, two hundred fifteen billion, four hundred thirty-five million, fifty-four thousand, fifty-one".