542125051231 has 4 divisors (see below), whose sum is σ = 543030102000. Its totient is φ = 541220000464.

The previous prime is 542125051219. The next prime is 542125051271. The reversal of 542125051231 is 132150521245.

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

It is a cyclic number.

It is not a de Polignac number, because 542125051231 - 2¹³ = 542125043039 is a prime.

It is a super-2 number, since 2×542125051231² (a number of 24 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 = 542125051193 and 542125051202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542125051201) 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, 452524486 + ... + 452525683.

It is an arithmetic number, because the mean of its divisors is an integer number (135757525500).

Almost surely, 2^542125051231 is an apocalyptic number.

542125051231 is a deficient number, since it is larger than the sum of its proper divisors (905050769).

542125051231 is an equidigital number, since it uses as much as digits as its factorization.

542125051231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905050768.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 542125051231 its reverse (132150521245), we get a palindrome (674275572476).

The spelling of 542125051231 in words is "five hundred forty-two billion, one hundred twenty-five million, fifty-one thousand, two hundred thirty-one".