10111001000 has 32 divisors (see below), whose sum is σ = 23659744680. Its totient is φ = 4044400000.

The previous prime is 10111000979. The next prime is 10111001009. The reversal of 10111001000 is 10011101.

It can be written as a sum of positive squares in 4 ways, for example, as 6365805796 + 3745195204 = 79786^2 + 61198^2 .

It is a Harshad number since it is a multiple of its sum of digits (5).

It is not an unprimeable number, because it can be changed into a prime (10111001009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5054501 + ... + 5056500.

Almost surely, 2^10111001000 is an apocalyptic number.

10111001000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10111001000 is an abundant number, since it is smaller than the sum of its proper divisors (13548743680).

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

10111001000 is a wasteful number, since it uses less digits than its factorization.

10111001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10111022 (or 10111008 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 5.

Adding to 10111001000 its reverse (10011101), we get a palindrome (10121012101).

The spelling of 10111001000 in words is "ten billion, one hundred eleven million, one thousand".