101294012543 has 4 divisors (see below), whose sum is σ = 102720688848. Its totient is φ = 99867336240.

The previous prime is 101294012539. The next prime is 101294012591. The reversal of 101294012543 is 345210492101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345210492101 = 188369 ⋅1832629.

It is a cyclic number.

It is not a de Polignac number, because 101294012543 - 2² = 101294012539 is a prime.

It is a super-2 number, since 2×101294012543² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101294014543) 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, 713338046 + ... + 713338187.

It is an arithmetic number, because the mean of its divisors is an integer number (25680172212).

Almost surely, 2^101294012543 is an apocalyptic number.

101294012543 is a deficient number, since it is larger than the sum of its proper divisors (1426676305).

101294012543 is an equidigital number, since it uses as much as digits as its factorization.

101294012543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426676304.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 101294012543 in words is "one hundred one billion, two hundred ninety-four million, twelve thousand, five hundred forty-three".