1012142431 has 4 divisors (see below), whose sum is σ = 1031239512. Its totient is φ = 993045352.

The previous prime is 1012142429. The next prime is 1012142449. The reversal of 1012142431 is 1342412101.

1012142431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1012142431 - 2¹ = 1012142429 is a prime.

It is a super-2 number, since 2×1012142431² = 2048864601261179522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012142399 and 1012142408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012142231) 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, 9548461 + ... + 9548566.

It is an arithmetic number, because the mean of its divisors is an integer number (257809878).

Almost surely, 2^1012142431 is an apocalyptic number.

1012142431 is a deficient number, since it is larger than the sum of its proper divisors (19097081).

1012142431 is an equidigital number, since it uses as much as digits as its factorization.

1012142431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19097080.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1012142431 is about 31814.1860024738. The cubic root of 1012142431 is about 1004.0312045533.

Adding to 1012142431 its reverse (1342412101), we get a palindrome (2354554532).

The spelling of 1012142431 in words is "one billion, twelve million, one hundred forty-two thousand, four hundred thirty-one".