1013232331 has 4 divisors (see below), whose sum is σ = 1013350464. Its totient is φ = 1013114200.

The previous prime is 1013232307. The next prime is 1013232343. The reversal of 1013232331 is 1332323101.

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 1013232331 - 2¹³ = 1013224139 is a prime.

It is a super-2 number, since 2×1013232331² = 2053279513167387122, 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 = 1013232299 and 1013232308.

It is not an unprimeable number, because it can be changed into a prime (1013232301) 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, 45100 + ... + 63721.

It is an arithmetic number, because the mean of its divisors is an integer number (253337616).

Almost surely, 2^1013232331 is an apocalyptic number.

1013232331 is a deficient number, since it is larger than the sum of its proper divisors (118133).

1013232331 is an equidigital number, since it uses as much as digits as its factorization.

1013232331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118132.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1013232331 is about 31831.3105448079. The cubic root of 1013232331 is about 1004.3914638158.

Adding to 1013232331 its reverse (1332323101), we get a palindrome (2345555432).

The spelling of 1013232331 in words is "one billion, thirteen million, two hundred thirty-two thousand, three hundred thirty-one".