101603256287399 has 4 divisors (see below), whose sum is σ = 101603702646336. Its totient is φ = 101602809928464.

The previous prime is 101603256287383. The next prime is 101603256287413. The reversal of 101603256287399 is 993782652306101.

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

It is a cyclic number.

It is not a de Polignac number, because 101603256287399 - 2⁴ = 101603256287383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101603256287329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222837854 + ... + 223293339.

It is an arithmetic number, because the mean of its divisors is an integer number (25400925661584).

Almost surely, 2^{101603256287399} is an apocalyptic number.

101603256287399 is a deficient number, since it is larger than the sum of its proper divisors (446358937).

101603256287399 is an equidigital number, since it uses as much as digits as its factorization.

101603256287399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446358936.

The product of its (nonzero) digits is 29393280, while the sum is 62.

The spelling of 101603256287399 in words is "one hundred one trillion, six hundred three billion, two hundred fifty-six million, two hundred eighty-seven thousand, three hundred ninety-nine".