20010231123011 has 8 divisors (see below), whose sum is σ = 20736114741120. Its totient is φ = 19286739214848.

The previous prime is 20010231122971. The next prime is 20010231123041. The reversal of 20010231123011 is 11032113201002.

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 20010231123011 - 2²⁶ = 20010164014147 is a prime.

It is a super-2 number, since 2×20010231123011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010231123041) 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, 597910451 + ... + 597943916.

It is an arithmetic number, because the mean of its divisors is an integer number (2592014342640).

Almost surely, 2^{20010231123011} is an apocalyptic number.

20010231123011 is a deficient number, since it is larger than the sum of its proper divisors (725883618109).

20010231123011 is a wasteful number, since it uses less digits than its factorization.

20010231123011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195854973.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20010231123011 its reverse (11032113201002), we get a palindrome (31042344324013).

The spelling of 20010231123011 in words is "twenty trillion, ten billion, two hundred thirty-one million, one hundred twenty-three thousand, eleven".