100103131951 has 2 divisors, whose sum is σ = 100103131952. Its totient is φ = 100103131950.

The previous prime is 100103131949. The next prime is 100103132023. The reversal of 100103131951 is 159131301001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100103131951 - 2¹ = 100103131949 is a prime.

Together with 100103131949, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100103171951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50051565975 + 50051565976.

It is an arithmetic number, because the mean of its divisors is an integer number (50051565976).

Almost surely, 2^100103131951 is an apocalyptic number.

100103131951 is a deficient number, since it is larger than the sum of its proper divisors (1).

100103131951 is an equidigital number, since it uses as much as digits as its factorization.

100103131951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405, while the sum is 25.

Adding to 100103131951 its reverse (159131301001), we get a palindrome (259234432952).

The spelling of 100103131951 in words is "one hundred billion, one hundred three million, one hundred thirty-one thousand, nine hundred fifty-one".