1031421431 has 2 divisors, whose sum is σ = 1031421432. Its totient is φ = 1031421430.

The previous prime is 1031421409. The next prime is 1031421451. The reversal of 1031421431 is 1341241301.

It is an a-pointer prime, because the next prime (1031421451) can be obtained adding 1031421431 to its sum of digits (20).

It is a strong prime.

It is an emirp because it is prime and its reverse (1341241301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1031421431 - 2¹⁸ = 1031159287 is a prime.

It is a super-2 number, since 2×1031421431² = 2127660336652175522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031421451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515710715 + 515710716.

It is an arithmetic number, because the mean of its divisors is an integer number (515710716).

Almost surely, 2^1031421431 is an apocalyptic number.

1031421431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031421431 is an equidigital number, since it uses as much as digits as its factorization.

1031421431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1031421431 is about 32115.7505127936. The cubic root of 1031421431 is about 1010.3659853925.

Adding to 1031421431 its reverse (1341241301), we get a palindrome (2372662732).

The spelling of 1031421431 in words is "one billion, thirty-one million, four hundred twenty-one thousand, four hundred thirty-one".