20125542513143 has 8 divisors (see below), whose sum is σ = 20384673176448. Its totient is φ = 19866808379704.

The previous prime is 20125542513073. The next prime is 20125542513163. The reversal of 20125542513143 is 34131524552102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20125542513143 is a prime.

It is a super-2 number, since 2×20125542513143² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20125542513097 and 20125542513106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125542513163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99030305 + ... + 99233322.

It is an arithmetic number, because the mean of its divisors is an integer number (2548084147056).

Almost surely, 2^{20125542513143} is an apocalyptic number.

20125542513143 is a deficient number, since it is larger than the sum of its proper divisors (259130663305).

20125542513143 is a wasteful number, since it uses less digits than its factorization.

20125542513143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198264933.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 20125542513143 in words is "twenty trillion, one hundred twenty-five billion, five hundred forty-two million, five hundred thirteen thousand, one hundred forty-three".