20351123330 has 32 divisors (see below), whose sum is σ = 36822898944. Its totient is φ = 8098142976.

The previous prime is 20351123321. The next prime is 20351123333. The reversal of 20351123330 is 3332115302.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20351123296 and 20351123305.

It is not an unprimeable number, because it can be changed into a prime (20351123333) 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, 1553789 + ... + 1566831.

It is an arithmetic number, because the mean of its divisors is an integer number (1150715592).

Almost surely, 2^20351123330 is an apocalyptic number.

20351123330 is a deficient number, since it is larger than the sum of its proper divisors (16471775614).

20351123330 is a wasteful number, since it uses less digits than its factorization.

20351123330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13850.

The product of its (nonzero) digits is 1620, while the sum is 23.

Adding to 20351123330 its reverse (3332115302), we get a palindrome (23683238632).

The spelling of 20351123330 in words is "twenty billion, three hundred fifty-one million, one hundred twenty-three thousand, three hundred thirty".