101025616243 has 4 divisors (see below), whose sum is σ = 106342753960. Its totient is φ = 95708478528.

The previous prime is 101025616201. The next prime is 101025616267. The reversal of 101025616243 is 342616520101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342616520101 = 54919 ⋅6238579.

It is a cyclic number.

It is not a de Polignac number, because 101025616243 - 2²⁵ = 100992061811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101025616283) 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, 2658568830 + ... + 2658568867.

It is an arithmetic number, because the mean of its divisors is an integer number (26585688490).

Almost surely, 2^101025616243 is an apocalyptic number.

101025616243 is a deficient number, since it is larger than the sum of its proper divisors (5317137717).

101025616243 is an equidigital number, since it uses as much as digits as its factorization.

101025616243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5317137716.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 101025616243 in words is "one hundred one billion, twenty-five million, six hundred sixteen thousand, two hundred forty-three".