1002111001123 has 8 divisors (see below), whose sum is σ = 1004790188160. Its totient is φ = 999432932160.

The previous prime is 1002111001097. The next prime is 1002111001147. The reversal of 1002111001123 is 3211001112001.

It is a happy number.

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 1002111001123 - 2⁵ = 1002111001091 is a prime.

It is a super-2 number, since 2×1002111001123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002111004123) 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, 1531086 + ... + 2085292.

It is an arithmetic number, because the mean of its divisors is an integer number (125598773520).

Almost surely, 2^{1002111001123} is an apocalyptic number.

1002111001123 is a deficient number, since it is larger than the sum of its proper divisors (2679187037).

1002111001123 is an equidigital number, since it uses as much as digits as its factorization.

1002111001123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559037.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1002111001123 its reverse (3211001112001), we get a palindrome (4213112113124).

The spelling of 1002111001123 in words is "one trillion, two billion, one hundred eleven million, one thousand, one hundred twenty-three".