20314215452 has 48 divisors (see below), whose sum is σ = 37983738240. Its totient is φ = 9489811968.

The previous prime is 20314215443. The next prime is 20314215473. The reversal of 20314215452 is 25451241302.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426173 + ... + 471435.

It is an arithmetic number, because the mean of its divisors is an integer number (791327880).

Almost surely, 2^20314215452 is an apocalyptic number.

It is an amenable number.

20314215452 is a deficient number, since it is larger than the sum of its proper divisors (17669522788).

20314215452 is a wasteful number, since it uses less digits than its factorization.

20314215452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45422 (or 45420 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 20314215452 its reverse (25451241302), we get a palindrome (45765456754).

The spelling of 20314215452 in words is "twenty billion, three hundred fourteen million, two hundred fifteen thousand, four hundred fifty-two".