1403427210421 has 4 divisors (see below), whose sum is σ = 1406595218112. Its totient is φ = 1400259202732.

The previous prime is 1403427210377. The next prime is 1403427210433. The reversal of 1403427210421 is 1240127243041.

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 1403427210421 - 2¹⁷ = 1403427079349 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 (1403424210421) 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, 1584003181 + ... + 1584004066.

It is an arithmetic number, because the mean of its divisors is an integer number (351648804528).

Almost surely, 2^{1403427210421} is an apocalyptic number.

It is an amenable number.

1403427210421 is a deficient number, since it is larger than the sum of its proper divisors (3168007691).

1403427210421 is an equidigital number, since it uses as much as digits as its factorization.

1403427210421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3168007690.

The product of its (nonzero) digits is 10752, while the sum is 31.

The spelling of 1403427210421 in words is "one trillion, four hundred three billion, four hundred twenty-seven million, two hundred ten thousand, four hundred twenty-one".