20120344254 has 48 divisors (see below), whose sum is σ = 46170051408. Its totient is φ = 6310676736.

The previous prime is 20120344207. The next prime is 20120344331. The reversal of 20120344254 is 45244302102.

20120344254 is a `hidden beast` number, since 201 + 2 + 0 + 34 + 425 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2025969 + ... + 2035875.

It is an arithmetic number, because the mean of its divisors is an integer number (961876071).

Almost surely, 2^20120344254 is an apocalyptic number.

20120344254 is an abundant number, since it is smaller than the sum of its proper divisors (26049707154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20120344254 is a wasteful number, since it uses less digits than its factorization.

20120344254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16569 (or 16566 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 20120344254 its reverse (45244302102), we get a palindrome (65364646356).

The spelling of 20120344254 in words is "twenty billion, one hundred twenty million, three hundred forty-four thousand, two hundred fifty-four".