1002112121023 has 8 divisors (see below), whose sum is σ = 1108365173888. Its totient is φ = 900025854624.

The previous prime is 1002112120969. The next prime is 1002112121041. The reversal of 1002112121023 is 3201212112001.

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

It is a de Polignac number, because none of the positive numbers 2^k-1002112121023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002112120988 and 1002112121006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002112121323) 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, 1041696111 + ... + 1041697072.

It is an arithmetic number, because the mean of its divisors is an integer number (138545646736).

Almost surely, 2^{1002112121023} is an apocalyptic number.

1002112121023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1002112121023 is a deficient number, since it is larger than the sum of its proper divisors (106253052865).

1002112121023 is a wasteful number, since it uses less digits than its factorization.

1002112121023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083393233.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1002112121023 its reverse (3201212112001), we get a palindrome (4203324233024).

The spelling of 1002112121023 in words is "one trillion, two billion, one hundred twelve million, one hundred twenty-one thousand, twenty-three".