1002201011123 has 4 divisors (see below), whose sum is σ = 1079293396608. Its totient is φ = 925108625640.

The previous prime is 1002201011113. The next prime is 1002201011213. The reversal of 1002201011123 is 3211101022001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002201011123 - 2¹⁰ = 1002201010099 is a prime.

It is a super-2 number, since 2×1002201011123² (a number of 25 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 = 1002201011098 and 1002201011107.

It is not an unprimeable number, because it can be changed into a prime (1002201011113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38546192723 + ... + 38546192748.

It is an arithmetic number, because the mean of its divisors is an integer number (269823349152).

Almost surely, 2^{1002201011123} is an apocalyptic number.

1002201011123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1002201011123 is a deficient number, since it is larger than the sum of its proper divisors (77092385485).

1002201011123 is an equidigital number, since it uses as much as digits as its factorization.

1002201011123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77092385484.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1002201011123 its reverse (3211101022001), we get a palindrome (4213302033124).

The spelling of 1002201011123 in words is "one trillion, two billion, two hundred one million, eleven thousand, one hundred twenty-three".