102004205542 has 16 divisors (see below), whose sum is σ = 159230201760. Its totient is φ = 48948534208.

The previous prime is 102004205519. The next prime is 102004205591. The reversal of 102004205542 is 245502400201.

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, 5255863 + ... + 5275234.

It is an arithmetic number, because the mean of its divisors is an integer number (9951887610).

Almost surely, 2^102004205542 is an apocalyptic number.

102004205542 is a deficient number, since it is larger than the sum of its proper divisors (57225996218).

102004205542 is a wasteful number, since it uses less digits than its factorization.

102004205542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10531295.

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 102004205542 its reverse (245502400201), we get a palindrome (347506605743).

The spelling of 102004205542 in words is "one hundred two billion, four million, two hundred five thousand, five hundred forty-two".