10012323121 has 8 divisors (see below), whose sum is σ = 10213439040. Its totient is φ = 9811659312.

The previous prime is 10012323071. The next prime is 10012323149. The reversal of 10012323121 is 12132321001.

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

It is a cyclic number.

It is not a de Polignac number, because 10012323121 - 2⁹ = 10012322609 is a prime.

It is a super-2 number, since 2×10012323121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10012323095 and 10012323104.

It is not an unprimeable number, because it can be changed into a prime (10012323151) 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, 68115 + ... + 157048.

It is an arithmetic number, because the mean of its divisors is an integer number (1276679880).

Almost surely, 2^10012323121 is an apocalyptic number.

It is an amenable number.

10012323121 is a deficient number, since it is larger than the sum of its proper divisors (201115919).

10012323121 is an equidigital number, since it uses as much as digits as its factorization.

10012323121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226055.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10012323121 its reverse (12132321001), we get a palindrome (22144644122).

The spelling of 10012323121 in words is "ten billion, twelve million, three hundred twenty-three thousand, one hundred twenty-one".