103726521442 has 4 divisors (see below), whose sum is σ = 155589782166. Its totient is φ = 51863260720.

The previous prime is 103726521439. The next prime is 103726521443. The reversal of 103726521442 is 244125627301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244125627301 = 47 ⋅5194162283.

It can be written as a sum of positive squares in only one way, i.e., 100236193201 + 3490328241 = 316601^2 + 59079^2 .

It is not an unprimeable number, because it can be changed into a prime (103726521443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25931630359 + ... + 25931630362.

Almost surely, 2^103726521442 is an apocalyptic number.

103726521442 is a deficient number, since it is larger than the sum of its proper divisors (51863260724).

103726521442 is an equidigital number, since it uses as much as digits as its factorization.

103726521442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51863260723.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 103726521442 in words is "one hundred three billion, seven hundred twenty-six million, five hundred twenty-one thousand, four hundred forty-two".