1012231431 has 32 divisors (see below), whose sum is σ = 1514557440. Its totient is φ = 668131200.

The previous prime is 1012231427. The next prime is 1012231463. The reversal of 1012231431 is 1341322101.

1012231431 is a `hidden beast` number, since 1 + 0 + 1 + 2 + 231 + 431 = 666.

It is not a de Polignac number, because 1012231431 - 2² = 1012231427 is a prime.

It is a super-2 number, since 2×1012231431² = 2049224939808615522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012231421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1706671 + ... + 1707263.

It is an arithmetic number, because the mean of its divisors is an integer number (47329920).

Almost surely, 2^1012231431 is an apocalyptic number.

1012231431 is a deficient number, since it is larger than the sum of its proper divisors (502326009).

1012231431 is a wasteful number, since it uses less digits than its factorization.

1012231431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124 (or 1118 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1012231431 is about 31815.5847188135. The cubic root of 1012231431 is about 1004.0606326112.

Adding to 1012231431 its reverse (1341322101), we get a palindrome (2353553532).

The spelling of 1012231431 in words is "one billion, twelve million, two hundred thirty-one thousand, four hundred thirty-one".