1012523831 has 4 divisors (see below), whose sum is σ = 1104571464. Its totient is φ = 920476200.

The previous prime is 1012523807. The next prime is 1012523857. The reversal of 1012523831 is 1383252101.

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 1012523831 - 2¹⁰ = 1012522807 is a prime.

It is a super-2 number, since 2×1012523831² = 2050409016685833122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012523831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012123831) 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, 46023800 + ... + 46023821.

It is an arithmetic number, because the mean of its divisors is an integer number (276142866).

Almost surely, 2^1012523831 is an apocalyptic number.

1012523831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1012523831 is a deficient number, since it is larger than the sum of its proper divisors (92047633).

1012523831 is an equidigital number, since it uses as much as digits as its factorization.

1012523831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92047632.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1012523831 is about 31820.1796192291. The cubic root of 1012523831 is about 1004.1573032129.

Adding to 1012523831 its reverse (1383252101), we get a palindrome (2395775932).

The spelling of 1012523831 in words is "one billion, twelve million, five hundred twenty-three thousand, eight hundred thirty-one".