100123111010 has 64 divisors (see below), whose sum is σ = 194767130880. Its totient is φ = 36838851840.

The previous prime is 100123111009. The next prime is 100123111013. The reversal of 100123111010 is 10111321001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100123110982 and 100123111000.

It is not an unprimeable number, because it can be changed into a prime (100123111013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63408401 + ... + 63409979.

It is an arithmetic number, because the mean of its divisors is an integer number (3043236420).

Almost surely, 2^100123111010 is an apocalyptic number.

100123111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100123111010 is a deficient number, since it is larger than the sum of its proper divisors (94644019870).

100123111010 is a wasteful number, since it uses less digits than its factorization.

100123111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 100123111010 its reverse (10111321001), we get a palindrome (110234432011).

The spelling of 100123111010 in words is "one hundred billion, one hundred twenty-three million, one hundred eleven thousand, ten".