20281204514 has 4 divisors (see below), whose sum is σ = 30421806774. Its totient is φ = 10140602256.

The previous prime is 20281204513. The next prime is 20281204519. The reversal of 20281204514 is 41540218202.

20281204514 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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., 18956608489 + 1324596025 = 137683^2 + 36395^2 .

It is a super-2 number, since 2×20281204514² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20281204513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5070301127 + ... + 5070301130.

Almost surely, 2^20281204514 is an apocalyptic number.

20281204514 is a deficient number, since it is larger than the sum of its proper divisors (10140602260).

20281204514 is a wasteful number, since it uses less digits than its factorization.

20281204514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10140602259.

The product of its (nonzero) digits is 5120, while the sum is 29.

The spelling of 20281204514 in words is "twenty billion, two hundred eighty-one million, two hundred four thousand, five hundred fourteen".