10000001250 has 120 divisors (see below), whose sum is σ = 27480840816. Its totient is φ = 2626668000.

The previous prime is 10000001159. The next prime is 10000001251. The reversal of 10000001250 is 5210000001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (10000001251) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 747117 + ... + 760383.

Almost surely, 2^10000001250 is an apocalyptic number.

10000001250 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 10000001250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13740420408).

10000001250 is an abundant number, since it is smaller than the sum of its proper divisors (17480839566).

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

10000001250 is a wasteful number, since it uses less digits than its factorization.

10000001250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13362 (or 13344 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

Adding to 10000001250 its reverse (5210000001), we get a palindrome (15210001251).

The spelling of 10000001250 in words is "ten billion, one thousand, two hundred fifty".