1431010421 has 4 divisors (see below), whose sum is σ = 1441305600. Its totient is φ = 1420715244.

The previous prime is 1431010379. The next prime is 1431010433. The reversal of 1431010421 is 1240101341.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1240101341 = 11197 ⋅110753.

It is a cyclic number.

It is not a de Polignac number, because 1431010421 - 2²⁶ = 1363901557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1431010421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431013421) 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, 5147381 + ... + 5147658.

It is an arithmetic number, because the mean of its divisors is an integer number (360326400).

Almost surely, 2^1431010421 is an apocalyptic number.

It is an amenable number.

1431010421 is a deficient number, since it is larger than the sum of its proper divisors (10295179).

1431010421 is a wasteful number, since it uses less digits than its factorization.

1431010421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10295178.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1431010421 is about 37828.6983783476. The cubic root of 1431010421 is about 1126.8884617072. Note that the first 3 decimals are identical.

Adding to 1431010421 its reverse (1240101341), we get a palindrome (2671111762).

The spelling of 1431010421 in words is "one billion, four hundred thirty-one million, ten thousand, four hundred twenty-one".