1012231500 has 192 divisors, whose sum is σ = 3396556800. Its totient is φ = 229459200.

The previous prime is 1012231483. The next prime is 1012231537. The reversal of 1012231500 is 51322101.

It is a super-2 number, since 2×1012231500² = 2049225219184500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1012231500.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1564177 + ... + 1564823.

It is an arithmetic number, because the mean of its divisors is an integer number (17690400).

Almost surely, 2^1012231500 is an apocalyptic number.

1012231500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012231500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1698278400).

1012231500 is an abundant number, since it is smaller than the sum of its proper divisors (2384325300).

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

1012231500 is a wasteful number, since it uses less digits than its factorization.

1012231500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825 (or 813 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1012231500 is about 31815.5858031877. The cubic root of 1012231500 is about 1004.0606554256.

Adding to 1012231500 its reverse (51322101), we get a palindrome (1063553601).

The spelling of 1012231500 in words is "one billion, twelve million, two hundred thirty-one thousand, five hundred".