1012361431 has 4 divisors (see below), whose sum is σ = 1012700664. Its totient is φ = 1012022200.

The previous prime is 1012361419. The next prime is 1012361437. The reversal of 1012361431 is 1341632101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1341632101 = 4049 ⋅331349.

It is a cyclic number.

It is not a de Polignac number, because 1012361431 - 2²¹ = 1010264279 is a prime.

It is a super-2 number, since 2×1012361431² = 2049751333952735522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012361437) 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, 165100 + ... + 171121.

It is an arithmetic number, because the mean of its divisors is an integer number (253175166).

Almost surely, 2^1012361431 is an apocalyptic number.

1012361431 is a deficient number, since it is larger than the sum of its proper divisors (339233).

1012361431 is an equidigital number, since it uses as much as digits as its factorization.

1012361431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339232.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1012361431 is about 31817.6276771226. The cubic root of 1012361431 is about 1004.1036143151.

Adding to 1012361431 its reverse (1341632101), we get a palindrome (2353993532).

The spelling of 1012361431 in words is "one billion, twelve million, three hundred sixty-one thousand, four hundred thirty-one".