1054205112345 has 96 divisors (see below), whose sum is σ = 2120095246080. Its totient is φ = 437856883200.

The previous prime is 1054205112319. The next prime is 1054205112349. The reversal of 1054205112345 is 5432115024501.

1054205112345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1054205112345 - 2²¹ = 1054203015193 is a prime.

It is a super-2 number, since 2×1054205112345² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1054205112349) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 22706055 + ... + 22752435.

It is an arithmetic number, because the mean of its divisors is an integer number (22084325480).

Almost surely, 2^{1054205112345} is an apocalyptic number.

1054205112345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1054205112345 is an abundant number, since it is smaller than the sum of its proper divisors (1065890133735).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1054205112345 is a wasteful number, since it uses less digits than its factorization.

1054205112345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48207 (or 48196 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 1054205112345 in words is "one trillion, fifty-four billion, two hundred five million, one hundred twelve thousand, three hundred forty-five".