20303040254 has 32 divisors (see below), whose sum is σ = 36696741120. Its totient is φ = 8229912768.

The previous prime is 20303040203. The next prime is 20303040257. The reversal of 20303040254 is 45204030302.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303040257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102269 + ... + 225975.

It is an arithmetic number, because the mean of its divisors is an integer number (1146773160).

Almost surely, 2^20303040254 is an apocalyptic number.

20303040254 is a deficient number, since it is larger than the sum of its proper divisors (16393700866).

20303040254 is a wasteful number, since it uses less digits than its factorization.

20303040254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124352.

The product of its (nonzero) digits is 2880, while the sum is 23.

Adding to 20303040254 its reverse (45204030302), we get a palindrome (65507070556).

The spelling of 20303040254 in words is "twenty billion, three hundred three million, forty thousand, two hundred fifty-four".