1012212431 has 2 divisors, whose sum is σ = 1012212432. Its totient is φ = 1012212430.

The previous prime is 1012212427. The next prime is 1012212449. The reversal of 1012212431 is 1342122101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012212431 - 2² = 1012212427 is a prime.

It is a super-2 number, since 2×1012212431² = 2049148010941859522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012262431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506106215 + 506106216.

It is an arithmetic number, because the mean of its divisors is an integer number (506106216).

Almost surely, 2^1012212431 is an apocalyptic number.

1012212431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012212431 is an equidigital number, since it uses as much as digits as its factorization.

1012212431 is an evil number, because the sum of its binary digits is even.

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

The square root of 1012212431 is about 31815.2861216114. The cubic root of 1012212431 is about 1004.0543503617.

Adding to 1012212431 its reverse (1342122101), we get a palindrome (2354334532).

The spelling of 1012212431 in words is "one billion, twelve million, two hundred twelve thousand, four hundred thirty-one".