137103215122 has 4 divisors (see below), whose sum is σ = 205654822686. Its totient is φ = 68551607560.

The previous prime is 137103215111. The next prime is 137103215143. The reversal of 137103215122 is 221512301731.

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

It can be written as a sum of positive squares in only one way, i.e., 84401289361 + 52701925761 = 290519^2 + 229569^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34275803779 + ... + 34275803782.

Almost surely, 2^137103215122 is an apocalyptic number.

137103215122 is a deficient number, since it is larger than the sum of its proper divisors (68551607564).

137103215122 is an equidigital number, since it uses as much as digits as its factorization.

137103215122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68551607563.

The product of its (nonzero) digits is 2520, while the sum is 28.

Adding to 137103215122 its reverse (221512301731), we get a palindrome (358615516853).

The spelling of 137103215122 in words is "one hundred thirty-seven billion, one hundred three million, two hundred fifteen thousand, one hundred twenty-two".