20314232421 has 16 divisors (see below), whose sum is σ = 30987738624. Its totient is φ = 11595863664.

The previous prime is 20314232369. The next prime is 20314232483. The reversal of 20314232421 is 12423241302.

It is a happy number.

It is not a de Polignac number, because 20314232421 - 2¹⁴ = 20314216037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20314232391 and 20314232400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20314232021) 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, 490855 + ... + 530628.

It is an arithmetic number, because the mean of its divisors is an integer number (1936733664).

Almost surely, 2^20314232421 is an apocalyptic number.

20314232421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20314232421 is a deficient number, since it is larger than the sum of its proper divisors (10673506203).

20314232421 is a wasteful number, since it uses less digits than its factorization.

20314232421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022440.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20314232421 its reverse (12423241302), we get a palindrome (32737473723).

The spelling of 20314232421 in words is "twenty billion, three hundred fourteen million, two hundred thirty-two thousand, four hundred twenty-one".