1251341245053 has 32 divisors (see below), whose sum is σ = 1864368115200. Its totient is φ = 829499747328.

The previous prime is 1251341245009. The next prime is 1251341245057. The reversal of 1251341245053 is 3505421431521.

1251341245053 is a `hidden beast` number, since 1 + 2 + 5 + 134 + 12 + 4 + 505 + 3 = 666.

It is not a de Polignac number, because 1251341245053 - 2²¹ = 1251339147901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1251341244999 and 1251341245017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251341245057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4198801 + ... + 4486937.

It is an arithmetic number, because the mean of its divisors is an integer number (58261503600).

Almost surely, 2^{1251341245053} is an apocalyptic number.

It is an amenable number.

1251341245053 is a deficient number, since it is larger than the sum of its proper divisors (613026870147).

1251341245053 is a wasteful number, since it uses less digits than its factorization.

1251341245053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289058 (or 289052 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 1251341245053 its reverse (3505421431521), we get a palindrome (4756762676574).

The spelling of 1251341245053 in words is "one trillion, two hundred fifty-one billion, three hundred forty-one million, two hundred forty-five thousand, fifty-three".