42512135061 has 32 divisors (see below), whose sum is σ = 62251757568. Its totient is φ = 25591861440.

The previous prime is 42512135033. The next prime is 42512135087. The reversal of 42512135061 is 16053121524.

It is not a de Polignac number, because 42512135061 - 2⁷ = 42512134933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42512135021) 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, 12601971 + ... + 12605343.

It is an arithmetic number, because the mean of its divisors is an integer number (1945367424).

Almost surely, 2^42512135061 is an apocalyptic number.

It is an amenable number.

42512135061 is a deficient number, since it is larger than the sum of its proper divisors (19739622507).

42512135061 is a wasteful number, since it uses less digits than its factorization.

42512135061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5841.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 42512135061 its reverse (16053121524), we get a palindrome (58565256585).

It can be divided in two parts, 4251 and 2135061, that added together give a palindrome (2139312).

The spelling of 42512135061 in words is "forty-two billion, five hundred twelve million, one hundred thirty-five thousand, sixty-one".