1012440231 has 24 divisors (see below), whose sum is σ = 1596441600. Its totient is φ = 613184400.

The previous prime is 1012440223. The next prime is 1012440259. The reversal of 1012440231 is 1320442101.

1012440231 is nontrivially palindromic in base 8.

It is not a de Polignac number, because 1012440231 - 2³ = 1012440223 is a prime.

It is a super-2 number, since 2×1012440231² = 2050070442694666722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012440271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 208570 + ... + 213368.

It is an arithmetic number, because the mean of its divisors is an integer number (66518400).

Almost surely, 2^1012440231 is an apocalyptic number.

1012440231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1012440231 is a deficient number, since it is larger than the sum of its proper divisors (584001369).

1012440231 is a wasteful number, since it uses less digits than its factorization.

1012440231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6947 (or 6944 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1012440231 is about 31818.8659603073. The cubic root of 1012440231 is about 1004.1296660490.

Adding to 1012440231 its reverse (1320442101), we get a palindrome (2332882332).

The spelling of 1012440231 in words is "one billion, twelve million, four hundred forty thousand, two hundred thirty-one".