42101203543 has 32 divisors (see below), whose sum is σ = 50482922112. Its totient is φ = 34360934400.

The previous prime is 42101203519. The next prime is 42101203601. The reversal of 42101203543 is 34530210124.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42101203543 is a prime.

It is a super-2 number, since 2×42101203543² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42101203343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2928553 + ... + 2942893.

It is an arithmetic number, because the mean of its divisors is an integer number (1577591316).

Almost surely, 2^42101203543 is an apocalyptic number.

42101203543 is a deficient number, since it is larger than the sum of its proper divisors (8381718569).

42101203543 is a wasteful number, since it uses less digits than its factorization.

42101203543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14635.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 42101203543 its reverse (34530210124), we get a palindrome (76631413667).

The spelling of 42101203543 in words is "forty-two billion, one hundred one million, two hundred three thousand, five hundred forty-three".