103236142642 has 4 divisors (see below), whose sum is σ = 154854213966. Its totient is φ = 51618071320.

The previous prime is 103236142637. The next prime is 103236142673. The reversal of 103236142642 is 246241632301.

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., 79596772641 + 23639370001 = 282129^2 + 153751^2 .

It is a super-2 number, since 2×103236142642² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103236142598 and 103236142607.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25809035659 + ... + 25809035662.

Almost surely, 2^103236142642 is an apocalyptic number.

103236142642 is a deficient number, since it is larger than the sum of its proper divisors (51618071324).

103236142642 is an equidigital number, since it uses as much as digits as its factorization.

103236142642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51618071323.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 103236142642 its reverse (246241632301), we get a palindrome (349477774943).

The spelling of 103236142642 in words is "one hundred three billion, two hundred thirty-six million, one hundred forty-two thousand, six hundred forty-two".