1210420431 has 12 divisors (see below), whose sum is σ = 1907329320. Its totient is φ = 733588080.

The previous prime is 1210420429. The next prime is 1210420433. The reversal of 1210420431 is 1340240121.

1210420431 is a `hidden beast` number, since 1 + 210 + 4 + 20 + 431 = 666.

It is an interprime number because it is at equal distance from previous prime (1210420429) and next prime (1210420433).

It is not a de Polignac number, because 1210420431 - 2¹ = 1210420429 is a prime.

It is a super-2 number, since 2×1210420431² = 2930235239564451522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210420433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6113136 + ... + 6113333.

It is an arithmetic number, because the mean of its divisors is an integer number (158944110).

Almost surely, 2^1210420431 is an apocalyptic number.

1210420431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1210420431 is a deficient number, since it is larger than the sum of its proper divisors (696908889).

1210420431 is a wasteful number, since it uses less digits than its factorization.

1210420431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12226486 (or 12226483 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1210420431 is about 34791.0970077116. The cubic root of 1210420431 is about 1065.7256418175.

Adding to 1210420431 its reverse (1340240121), we get a palindrome (2550660552).

The spelling of 1210420431 in words is "one billion, two hundred ten million, four hundred twenty thousand, four hundred thirty-one".