1251310045051 has 6 divisors (see below), whose sum is σ = 1375406909156. Its totient is φ = 1137554586300.

The previous prime is 1251310045049. The next prime is 1251310045057. The reversal of 1251310045051 is 1505400131521.

It is not a de Polignac number, because 1251310045051 - 2¹ = 1251310045049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1251310045057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5170702545 + ... + 5170702786.

Almost surely, 2^{1251310045051} is an apocalyptic number.

1251310045051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1251310045051 is a deficient number, since it is larger than the sum of its proper divisors (124096864105).

1251310045051 is a wasteful number, since it uses less digits than its factorization.

1251310045051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10341405353 (or 10341405342 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

Adding to 1251310045051 its reverse (1505400131521), we get a palindrome (2756710176572).

The spelling of 1251310045051 in words is "one trillion, two hundred fifty-one billion, three hundred ten million, forty-five thousand, fifty-one".