20402423321230 has 16 divisors (see below), whose sum is σ = 36724447607184. Its totient is φ = 8160950299840.

The previous prime is 20402423321177. The next prime is 20402423321233. The reversal of 20402423321230 is 3212332420402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20402423321233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2626065 + ... + 6906595.

It is an arithmetic number, because the mean of its divisors is an integer number (2295277975449).

Almost surely, 2^{20402423321230} is an apocalyptic number.

20402423321230 is a deficient number, since it is larger than the sum of its proper divisors (16322024285954).

20402423321230 is a wasteful number, since it uses less digits than its factorization.

20402423321230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4757171.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 20402423321230 its reverse (3212332420402), we get a palindrome (23614755741632).

The spelling of 20402423321230 in words is "twenty trillion, four hundred two billion, four hundred twenty-three million, three hundred twenty-one thousand, two hundred thirty".