10123553121 has 8 divisors (see below), whose sum is σ = 14725168224. Its totient is φ = 6135486720.

The previous prime is 10123553117. The next prime is 10123553149. The reversal of 10123553121 is 12135532101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10123553121 - 2² = 10123553117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10123553091 and 10123553100.

It is not an unprimeable number, because it can be changed into a prime (10123553021) 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, 153387136 + ... + 153387201.

It is an arithmetic number, because the mean of its divisors is an integer number (1840646028).

Almost surely, 2^10123553121 is an apocalyptic number.

10123553121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10123553121 is a deficient number, since it is larger than the sum of its proper divisors (4601615103).

10123553121 is a wasteful number, since it uses less digits than its factorization.

10123553121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306774351.

The product of its (nonzero) digits is 900, while the sum is 24.

The spelling of 10123553121 in words is "ten billion, one hundred twenty-three million, five hundred fifty-three thousand, one hundred twenty-one".