2051353011421 has 4 divisors (see below), whose sum is σ = 2344403441632. Its totient is φ = 1758302581212.

The previous prime is 2051353011413. The next prime is 2051353011467. The reversal of 2051353011421 is 1241103531502.

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 not a de Polignac number, because 2051353011421 - 2³ = 2051353011413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2051353011421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051353015421) 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, 146525215095 + ... + 146525215108.

It is an arithmetic number, because the mean of its divisors is an integer number (586100860408).

Almost surely, 2^{2051353011421} is an apocalyptic number.

It is an amenable number.

2051353011421 is a deficient number, since it is larger than the sum of its proper divisors (293050430211).

2051353011421 is an equidigital number, since it uses as much as digits as its factorization.

2051353011421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293050430210.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 2051353011421 its reverse (1241103531502), we get a palindrome (3292456542923).

The spelling of 2051353011421 in words is "two trillion, fifty-one billion, three hundred fifty-three million, eleven thousand, four hundred twenty-one".