2151030004421 has 4 divisors (see below), whose sum is σ = 2163046932000. Its totient is φ = 2139013076844.

The previous prime is 2151030004411. The next prime is 2151030004469. The reversal of 2151030004421 is 1244000301512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2151030004421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151030004411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6008463521 + ... + 6008463878.

It is an arithmetic number, because the mean of its divisors is an integer number (540761733000).

Almost surely, 2^{2151030004421} is an apocalyptic number.

It is an amenable number.

2151030004421 is a deficient number, since it is larger than the sum of its proper divisors (12016927579).

2151030004421 is a wasteful number, since it uses less digits than its factorization.

2151030004421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12016927578.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 2151030004421 its reverse (1244000301512), we get a palindrome (3395030305933).

The spelling of 2151030004421 in words is "two trillion, one hundred fifty-one billion, thirty million, four thousand, four hundred twenty-one".