20103405082 has 4 divisors (see below), whose sum is σ = 30155107626. Its totient is φ = 10051702540.

The previous prime is 20103405067. The next prime is 20103405163. The reversal of 20103405082 is 28050430102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28050430102 = 2 ⋅14025215051.

It can be written as a sum of positive squares in only one way, i.e., 13407092521 + 6696312561 = 115789^2 + 81831^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5025851269 + ... + 5025851272.

Almost surely, 2^20103405082 is an apocalyptic number.

20103405082 is a deficient number, since it is larger than the sum of its proper divisors (10051702544).

20103405082 is a wasteful number, since it uses less digits than its factorization.

20103405082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10051702543.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 20103405082 its reverse (28050430102), we get a palindrome (48153835184).

The spelling of 20103405082 in words is "twenty billion, one hundred three million, four hundred five thousand, eighty-two".