1402113421 has 4 divisors (see below), whose sum is σ = 1404992992. Its totient is φ = 1399233852.

The previous prime is 1402113413. The next prime is 1402113457. The reversal of 1402113421 is 1243112041.

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 1402113421 - 2³ = 1402113413 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 (1403113421) 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, 1439055 + ... + 1440028.

It is an arithmetic number, because the mean of its divisors is an integer number (351248248).

Almost surely, 2^1402113421 is an apocalyptic number.

It is an amenable number.

1402113421 is a deficient number, since it is larger than the sum of its proper divisors (2879571).

1402113421 is an equidigital number, since it uses as much as digits as its factorization.

1402113421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879570.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1402113421 is about 37444.8049934834. The cubic root of 1402113421 is about 1119.2515782752.

Adding to 1402113421 its reverse (1243112041), we get a palindrome (2645225462).

The spelling of 1402113421 in words is "one billion, four hundred two million, one hundred thirteen thousand, four hundred twenty-one".