1361257535051 has 16 divisors (see below), whose sum is σ = 1380617061120. Its totient is φ = 1342036939680.

The previous prime is 1361257535041. The next prime is 1361257535063. The reversal of 1361257535051 is 1505357521631.

It is a cyclic number.

It is not a de Polignac number, because 1361257535051 - 2¹⁰ = 1361257534027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1361257534993 and 1361257535011.

It is not an unprimeable number, because it can be changed into a prime (1361257535041) 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, 21283346 + ... + 21347208.

It is an arithmetic number, because the mean of its divisors is an integer number (86288566320).

Almost surely, 2^{1361257535051} is an apocalyptic number.

1361257535051 is a deficient number, since it is larger than the sum of its proper divisors (19359526069).

1361257535051 is a wasteful number, since it uses less digits than its factorization.

1361257535051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64946.

The product of its (nonzero) digits is 472500, while the sum is 44.

The spelling of 1361257535051 in words is "one trillion, three hundred sixty-one billion, two hundred fifty-seven million, five hundred thirty-five thousand, fifty-one".