103181693149922 has 4 divisors (see below), whose sum is σ = 154772539724886. Its totient is φ = 51590846574960.

The previous prime is 103181693149919. The next prime is 103181693149967. The reversal of 103181693149922 is 229941396181301.

It is a Cunningham number, because it is equal to 10157839²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 103181693149921 + 1 = 10157839^2 + 1^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25795423287479 + ... + 25795423287482.

Almost surely, 2^{103181693149922} is an apocalyptic number.

103181693149922 is a deficient number, since it is larger than the sum of its proper divisors (51590846574964).

103181693149922 is an equidigital number, since it uses as much as digits as its factorization.

103181693149922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51590846574963.

The product of its (nonzero) digits is 5038848, while the sum is 59.

The spelling of 103181693149922 in words is "one hundred three trillion, one hundred eighty-one billion, six hundred ninety-three million, one hundred forty-nine thousand, nine hundred twenty-two".