2800812231 has 12 divisors (see below), whose sum is σ = 4623563152. Its totient is φ = 1600464096.

The previous prime is 2800812227. The next prime is 2800812239. The reversal of 2800812231 is 1322180082.

It is not a de Polignac number, because 2800812231 - 2² = 2800812227 is a prime.

It is a super-2 number, since 2×2800812231² = 15689098306638394722, 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 = 2800812195 and 2800812204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2800812239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22228606 + ... + 22228731.

Almost surely, 2^2800812231 is an apocalyptic number.

2800812231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2800812231 is a deficient number, since it is larger than the sum of its proper divisors (1822750921).

2800812231 is a wasteful number, since it uses less digits than its factorization.

2800812231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44457350 (or 44457347 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 2800812231 is about 52922.7005263337. The cubic root of 2800812231 is about 1409.5960197726.

The spelling of 2800812231 in words is "two billion, eight hundred million, eight hundred twelve thousand, two hundred thirty-one".