2151142440251 has 16 divisors (see below), whose sum is σ = 2687032903680. Its totient is φ = 1679395559040.

The previous prime is 2151142440241. The next prime is 2151142440257. The reversal of 2151142440251 is 1520442411512.

It is a cyclic number.

It is not a de Polignac number, because 2151142440251 - 2¹⁰ = 2151142439227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2151142440257) 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, 291558041 + ... + 291565418.

It is an arithmetic number, because the mean of its divisors is an integer number (167939556480).

Almost surely, 2^{2151142440251} is an apocalyptic number.

2151142440251 is a deficient number, since it is larger than the sum of its proper divisors (535890463429).

2151142440251 is a wasteful number, since it uses less digits than its factorization.

2151142440251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583123514.

The product of its (nonzero) digits is 12800, while the sum is 32.

Adding to 2151142440251 its reverse (1520442411512), we get a palindrome (3671584851763).

The spelling of 2151142440251 in words is "two trillion, one hundred fifty-one billion, one hundred forty-two million, four hundred forty thousand, two hundred fifty-one".