3123121332203 has 2 divisors, whose sum is σ = 3123121332204. Its totient is φ = 3123121332202.

The previous prime is 3123121332181. The next prime is 3123121332229. The reversal of 3123121332203 is 3022331213213.

It is an a-pointer prime, because the next prime (3123121332229) can be obtained adding 3123121332203 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3123121332203 is a prime.

It is a super-2 number, since 2×3123121332203² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3123121332263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561560666101 + 1561560666102.

It is an arithmetic number, because the mean of its divisors is an integer number (1561560666102).

Almost surely, 2^{3123121332203} is an apocalyptic number.

3123121332203 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123121332203 is an equidigital number, since it uses as much as digits as its factorization.

3123121332203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 3123121332203 its reverse (3022331213213), we get a palindrome (6145452545416).

The spelling of 3123121332203 in words is "three trillion, one hundred twenty-three billion, one hundred twenty-one million, three hundred thirty-two thousand, two hundred three".