Search a number
BaseRepresentation
bin1001001111101101110101…
…01010111100110001100011
32122222122102010100002122122
410213312322222330301203
510131101310240024443
6111124010241254455
74165611246606335
oct447667252746143
978878363302578
1020331212033123
116529467182832
1223443a993442b
13b462c0622ca4
1450407078b455
15253cdc784968
hex127dbaabcc63

20331212033123 has 8 divisors (see below), whose sum is σ = 21416863088400. Its totient is φ = 19247119704288.

The previous prime is 20331212033101. The next prime is 20331212033129. The reversal of 20331212033123 is 32133021213302.

Adding to 20331212033123 its reverse (32133021213302), we get a palindrome (52464233246425).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20331212033123 - 28 = 20331212032867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20331212033092 and 20331212033101.

It is not an unprimeable number, because it can be changed into a prime (20331212033129) 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, 389654828 + ... + 389707001.

It is an arithmetic number, because the mean of its divisors is an integer number (2677107886050).

Almost surely, 220331212033123 is an apocalyptic number.

20331212033123 is a deficient number, since it is larger than the sum of its proper divisors (1085651055277).

20331212033123 is a wasteful number, since it uses less digits than its factorization.

20331212033123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779363221.

The product of its (nonzero) digits is 3888, while the sum is 26.

The spelling of 20331212033123 in words is "twenty trillion, three hundred thirty-one billion, two hundred twelve million, thirty-three thousand, one hundred twenty-three".