1230031000 has 64 divisors (see below), whose sum is σ = 3139961760. Its totient is φ = 447280000.

The previous prime is 1230030979. The next prime is 1230031001. The reversal of 1230031000 is 1300321.

It is a super-2 number, since 2×1230031000² = 3025952521922000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230031001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44911 + ... + 66910.

Almost surely, 2^1230031000 is an apocalyptic number.

1230031000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230031000 is an abundant number, since it is smaller than the sum of its proper divisors (1909930760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1230031000 is a wasteful number, since it uses less digits than its factorization.

1230031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111853 (or 111839 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 1230031000 is about 35071.7977868258. The cubic root of 1230031000 is about 1071.4502708833.

Adding to 1230031000 its reverse (1300321), we get a palindrome (1231331321).

The spelling of 1230031000 in words is "one billion, two hundred thirty million, thirty-one thousand".