542111355121 has 4 divisors (see below), whose sum is σ = 619555834432. Its totient is φ = 464666875812.

The previous prime is 542111355103. The next prime is 542111355133. The reversal of 542111355121 is 121553111245.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 542111355121 - 2¹¹ = 542111353073 is a prime.

It is a super-2 number, since 2×542111355121² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542111355101) 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, 38722239645 + ... + 38722239658.

It is an arithmetic number, because the mean of its divisors is an integer number (154888958608).

Almost surely, 2^542111355121 is an apocalyptic number.

It is an amenable number.

542111355121 is a deficient number, since it is larger than the sum of its proper divisors (77444479311).

542111355121 is an equidigital number, since it uses as much as digits as its factorization.

542111355121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77444479310.

The product of its digits is 6000, while the sum is 31.

Adding to 542111355121 its reverse (121553111245), we get a palindrome (663664466366).

The spelling of 542111355121 in words is "five hundred forty-two billion, one hundred eleven million, three hundred fifty-five thousand, one hundred twenty-one".