1002120103031 has 4 divisors (see below), whose sum is σ = 1002124890912. Its totient is φ = 1002115315152.

The previous prime is 1002120103027. The next prime is 1002120103043. The reversal of 1002120103031 is 1303010212001.

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 1002120103031 - 2² = 1002120103027 is a prime.

It is a super-2 number, since 2×1002120103031² (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 = 1002120102997 and 1002120103015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002120103091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2064911 + ... + 2503616.

It is an arithmetic number, because the mean of its divisors is an integer number (250531222728).

Almost surely, 2^{1002120103031} is an apocalyptic number.

1002120103031 is a deficient number, since it is larger than the sum of its proper divisors (4787881).

1002120103031 is an equidigital number, since it uses as much as digits as its factorization.

1002120103031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4787880.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1002120103031 its reverse (1303010212001), we get a palindrome (2305130315032).

The spelling of 1002120103031 in words is "one trillion, two billion, one hundred twenty million, one hundred three thousand, thirty-one".