12542335102 has 16 divisors (see below), whose sum is σ = 20693443824. Its totient is φ = 5701060200.

The previous prime is 12542335087. The next prime is 12542335139. The reversal of 12542335102 is 20153324521.

It is a super-2 number, since 2×12542335102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2353149 + ... + 2358472.

It is an arithmetic number, because the mean of its divisors is an integer number (1293340239).

Almost surely, 2^12542335102 is an apocalyptic number.

12542335102 is a deficient number, since it is larger than the sum of its proper divisors (8151108722).

12542335102 is an equidigital number, since it uses as much as digits as its factorization.

12542335102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4711656 (or 4711634 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 12542335102 its reverse (20153324521), we get a palindrome (32695659623).

The spelling of 12542335102 in words is "twelve billion, five hundred forty-two million, three hundred thirty-five thousand, one hundred two".