2123231102011 has 8 divisors (see below), whose sum is σ = 2236395579200. Its totient is φ = 2010208172040.

The previous prime is 2123231101991. The next prime is 2123231102117. The reversal of 2123231102011 is 1102011323212.

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 2123231102011 - 2¹⁵ = 2123231069243 is a prime.

It is a super-2 number, since 2×2123231102011² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2123231102011.

It is not an unprimeable number, because it can be changed into a prime (2123231102711) 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, 35356005 + ... + 35416006.

It is an arithmetic number, because the mean of its divisors is an integer number (279549447400).

Almost surely, 2^{2123231102011} is an apocalyptic number.

2123231102011 is a deficient number, since it is larger than the sum of its proper divisors (113164477189).

2123231102011 is a wasteful number, since it uses less digits than its factorization.

2123231102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70773609.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2123231102011 its reverse (1102011323212), we get a palindrome (3225242425223).

The spelling of 2123231102011 in words is "two trillion, one hundred twenty-three billion, two hundred thirty-one million, one hundred two thousand, eleven".