31103130323003 has 4 divisors (see below), whose sum is σ = 32106457107648. Its totient is φ = 30099803538360.

The previous prime is 31103130322997. The next prime is 31103130323021. The reversal of 31103130323003 is 30032303130113.

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 31103130323003 - 2⁶ = 31103130322939 is a prime.

It is a super-2 number, since 2×31103130323003² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31103130323003.

It is not an unprimeable number, because it can be changed into a prime (31103130323053) 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, 501663392276 + ... + 501663392337.

It is an arithmetic number, because the mean of its divisors is an integer number (8026614276912).

Almost surely, 2^{31103130323003} is an apocalyptic number.

31103130323003 is a deficient number, since it is larger than the sum of its proper divisors (1003326784645).

31103130323003 is a wasteful number, since it uses less digits than its factorization.

31103130323003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003326784644.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 31103130323003 its reverse (30032303130113), we get a palindrome (61135433453116).

The spelling of 31103130323003 in words is "thirty-one trillion, one hundred three billion, one hundred thirty million, three hundred twenty-three thousand, three".