1002123101123 has 8 divisors (see below), whose sum is σ = 1023503789568. Its totient is φ = 980744867784.

The previous prime is 1002123101101. The next prime is 1002123101131. The reversal of 1002123101123 is 3211013212001.

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 1002123101123 - 2⁶ = 1002123101059 is a prime.

It is a super-2 number, since 2×1002123101123² (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 (1002123101923) 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, 223340 + ... + 1433222.

It is an arithmetic number, because the mean of its divisors is an integer number (127937973696).

Almost surely, 2^{1002123101123} is an apocalyptic number.

1002123101123 is a deficient number, since it is larger than the sum of its proper divisors (21380688445).

1002123101123 is a wasteful number, since it uses less digits than its factorization.

1002123101123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227553.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1002123101123 its reverse (3211013212001), we get a palindrome (4213136313124).

The spelling of 1002123101123 in words is "one trillion, two billion, one hundred twenty-three million, one hundred one thousand, one hundred twenty-three".