1090803231 has 72 divisors (see below), whose sum is σ = 1908466560. Its totient is φ = 587774880.

The previous prime is 1090803199. The next prime is 1090803239. The reversal of 1090803231 is 1323080901.

It is not a de Polignac number, because 1090803231 - 2⁵ = 1090803199 is a prime.

It is a super-2 number, since 2×1090803231² = 2379703377520078722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1090803195 and 1090803204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090803239) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2603140 + ... + 2603558.

It is an arithmetic number, because the mean of its divisors is an integer number (26506480).

Almost surely, 2^1090803231 is an apocalyptic number.

1090803231 is a deficient number, since it is larger than the sum of its proper divisors (817663329).

1090803231 is a wasteful number, since it uses less digits than its factorization.

1090803231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1090803231 is about 33027.3103809559. The cubic root of 1090803231 is about 1029.3951993431.

The spelling of 1090803231 in words is "one billion, ninety million, eight hundred three thousand, two hundred thirty-one".