1253205144012 has 24 divisors (see below), whose sum is σ = 2924167579200. Its totient is φ = 417731870416.

The previous prime is 1253205144001. The next prime is 1253205144013. The reversal of 1253205144012 is 2104415023521.

It is a super-2 number, since 2×1253205144012² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1253205144013) 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, 1681039 + ... + 2309177.

It is an arithmetic number, because the mean of its divisors is an integer number (121840315800).

Almost surely, 2^{1253205144012} is an apocalyptic number.

1253205144012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1253205144012 is an abundant number, since it is smaller than the sum of its proper divisors (1670962435188).

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

1253205144012 is a wasteful number, since it uses less digits than its factorization.

1253205144012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794405 (or 794403 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 1253205144012 in words is "one trillion, two hundred fifty-three billion, two hundred five million, one hundred forty-four thousand, twelve".