1253206502361 has 16 divisors (see below), whose sum is σ = 2025384246720. Its totient is φ = 759519092160.

The previous prime is 1253206502347. The next prime is 1253206502381. The reversal of 1253206502361 is 1632056023521.

1253206502361 is a `hidden beast` number, since 1 + 2 + 532 + 0 + 65 + 0 + 2 + 3 + 61 = 666.

It is not a de Polignac number, because 1253206502361 - 2⁹ = 1253206501849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1253206502381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2109774960 + ... + 2109775553.

It is an arithmetic number, because the mean of its divisors is an integer number (126586515420).

Almost surely, 2^{1253206502361} is an apocalyptic number.

1253206502361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1253206502361 is a deficient number, since it is larger than the sum of its proper divisors (772177744359).

1253206502361 is a wasteful number, since it uses less digits than its factorization.

1253206502361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4219550533 (or 4219550527 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 1253206502361 in words is "one trillion, two hundred fifty-three billion, two hundred six million, five hundred two thousand, three hundred sixty-one".