10543120054 has 4 divisors (see below), whose sum is σ = 15814680084. Its totient is φ = 5271560026.

The previous prime is 10543120051. The next prime is 10543120087. The reversal of 10543120054 is 45002134501.

It is a happy number.

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

It is a super-2 number, since 2×10543120054² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10543120051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2635780012 + ... + 2635780015.

It is an arithmetic number, because the mean of its divisors is an integer number (3953670021).

Almost surely, 2^10543120054 is an apocalyptic number.

10543120054 is a deficient number, since it is larger than the sum of its proper divisors (5271560030).

10543120054 is an equidigital number, since it uses as much as digits as its factorization.

10543120054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5271560029.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 10543120054 its reverse (45002134501), we get a palindrome (55545254555).

The spelling of 10543120054 in words is "ten billion, five hundred forty-three million, one hundred twenty thousand, fifty-four".