1231000034 has 36 divisors (see below), whose sum is σ = 2059541442. Its totient is φ = 551358720.

The previous prime is 1231000009. The next prime is 1231000037. The reversal of 1231000034 is 4300001321.

It can be written as a sum of positive squares in 3 ways, for example, as 1218219409 + 12780625 = 34903^2 + 3575^2 .

It is a super-2 number, since 2×1231000034² = 3030722167416002312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1230999982 and 1231000018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231000037) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5375432 + ... + 5375660.

Almost surely, 2^1231000034 is an apocalyptic number.

1231000034 is a deficient number, since it is larger than the sum of its proper divisors (828541408).

1231000034 is an equidigital number, since it uses as much as digits as its factorization.

1231000034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1231000034 is about 35085.6100702268. The cubic root of 1231000034 is about 1071.7315643917.

Adding to 1231000034 its reverse (4300001321), we get a palindrome (5531001355).

The spelling of 1231000034 in words is "one billion, two hundred thirty-one million, thirty-four", and thus it is an aban number.