102003321310031 has 4 divisors (see below), whose sum is σ = 103525758941592. Its totient is φ = 100480883678472.

The previous prime is 102003321310027. The next prime is 102003321310073. The reversal of 102003321310031 is 130013123300201.

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 102003321310031 - 2² = 102003321310027 is a prime.

It is a super-2 number, since 2×102003321310031² (a number of 29 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 = 102003321309985 and 102003321310012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102003321310081) 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, 761218815680 + ... + 761218815813.

It is an arithmetic number, because the mean of its divisors is an integer number (25881439735398).

Almost surely, 2^{102003321310031} is an apocalyptic number.

102003321310031 is a deficient number, since it is larger than the sum of its proper divisors (1522437631561).

102003321310031 is an equidigital number, since it uses as much as digits as its factorization.

102003321310031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522437631560.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 102003321310031 its reverse (130013123300201), we get a palindrome (232016444610232).

The spelling of 102003321310031 in words is "one hundred two trillion, three billion, three hundred twenty-one million, three hundred ten thousand, thirty-one".