131213202103 has 2 divisors, whose sum is σ = 131213202104. Its totient is φ = 131213202102.

The previous prime is 131213202091. The next prime is 131213202137. The reversal of 131213202103 is 301202312131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131213202103 is a prime.

It is a super-2 number, since 2×131213202103² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131213202193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65606601051 + 65606601052.

It is an arithmetic number, because the mean of its divisors is an integer number (65606601052).

Almost surely, 2^131213202103 is an apocalyptic number.

131213202103 is a deficient number, since it is larger than the sum of its proper divisors (1).

131213202103 is an equidigital number, since it uses as much as digits as its factorization.

131213202103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131213202103 its reverse (301202312131), we get a palindrome (432415514234).

The spelling of 131213202103 in words is "one hundred thirty-one billion, two hundred thirteen million, two hundred two thousand, one hundred three".