1230117510 has 128 divisors (see below), whose sum is σ = 3211591680. Its totient is φ = 300643200.

The previous prime is 1230117461. The next prime is 1230117517. The reversal of 1230117510 is 157110321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230117517) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2801871 + ... + 2802309.

It is an arithmetic number, because the mean of its divisors is an integer number (25090560).

Almost surely, 2^1230117510 is an apocalyptic number.

1230117510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230117510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1605795840).

1230117510 is an abundant number, since it is smaller than the sum of its proper divisors (1981474170).

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

1230117510 is a wasteful number, since it uses less digits than its factorization.

1230117510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634.

The product of its (nonzero) digits is 210, while the sum is 21.

The square root of 1230117510 is about 35073.0310922794. The cubic root of 1230117510 is about 1071.4753892177.

Adding to 1230117510 its reverse (157110321), we get a palindrome (1387227831).

The spelling of 1230117510 in words is "one billion, two hundred thirty million, one hundred seventeen thousand, five hundred ten".