1251333103145 has 8 divisors (see below), whose sum is σ = 1502280117504. Its totient is φ = 1000612886704.

The previous prime is 1251333103103. The next prime is 1251333103147. The reversal of 1251333103145 is 5413013331521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1251333103145 - 2¹⁸ = 1251332841001 is a prime.

It is a super-3 number, since 3×1251333103145³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1251333103147) 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, 56687339 + ... + 56709408.

It is an arithmetic number, because the mean of its divisors is an integer number (187785014688).

Almost surely, 2^{1251333103145} is an apocalyptic number.

It is an amenable number.

1251333103145 is a deficient number, since it is larger than the sum of its proper divisors (250947014359).

1251333103145 is a wasteful number, since it uses less digits than its factorization.

1251333103145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113398959.

The product of its (nonzero) digits is 16200, while the sum is 32.

Adding to 1251333103145 its reverse (5413013331521), we get a palindrome (6664346434666).

The spelling of 1251333103145 in words is "one trillion, two hundred fifty-one billion, three hundred thirty-three million, one hundred three thousand, one hundred forty-five".