1051434040421 has 8 divisors (see below), whose sum is σ = 1051995478560. Its totient is φ = 1050872750928.

The previous prime is 1051434040411. The next prime is 1051434040439. The reversal of 1051434040421 is 1240404341501.

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 1051434040421 - 2³⁰ = 1050360298597 is a prime.

It is a super-2 number, since 2×1051434040421² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051434040411) 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, 15881630 + ... + 15947696.

It is an arithmetic number, because the mean of its divisors is an integer number (131499434820).

Almost surely, 2^{1051434040421} is an apocalyptic number.

It is an amenable number.

1051434040421 is a deficient number, since it is larger than the sum of its proper divisors (561438139).

1051434040421 is an equidigital number, since it uses as much as digits as its factorization.

1051434040421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74323.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 1051434040421 its reverse (1240404341501), we get a palindrome (2291838381922).

The spelling of 1051434040421 in words is "one trillion, fifty-one billion, four hundred thirty-four million, forty thousand, four hundred twenty-one".