101000000025 has 72 divisors (see below), whose sum is σ = 190564707840. Its totient is φ = 50993712000.

The previous prime is 101000000011. The next prime is 101000000033. The reversal of 101000000025 is 520000000101.

It is a happy number.

It is not a de Polignac number, because 101000000025 - 2¹⁴ = 100999983641 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 100999999953 and 101000000016.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6280495 + ... + 6296555.

Almost surely, 2^101000000025 is an apocalyptic number.

101000000025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101000000025 is a deficient number, since it is larger than the sum of its proper divisors (89564707815).

101000000025 is a wasteful number, since it uses less digits than its factorization.

101000000025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17567 (or 17559 counting only the distinct ones).

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

Adding to 101000000025 its reverse (520000000101), we get a palindrome (621000000126).

The spelling of 101000000025 in words is "one hundred one billion, twenty-five", and thus it is an aban number.