2011120230031 has 4 divisors (see below), whose sum is σ = 2193949341864. Its totient is φ = 1828291118200.

The previous prime is 2011120230029. The next prime is 2011120230043. The reversal of 2011120230031 is 1300320211102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2011120230031 - 2¹ = 2011120230029 is a prime.

It is a super-2 number, since 2×2011120230031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011120229987 and 2011120230014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011120230071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91414555900 + ... + 91414555921.

It is an arithmetic number, because the mean of its divisors is an integer number (548487335466).

Almost surely, 2^{2011120230031} is an apocalyptic number.

2011120230031 is a deficient number, since it is larger than the sum of its proper divisors (182829111833).

2011120230031 is a wasteful number, since it uses less digits than its factorization.

2011120230031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182829111832.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 2011120230031 its reverse (1300320211102), we get a palindrome (3311440441133).

The spelling of 2011120230031 in words is "two trillion, eleven billion, one hundred twenty million, two hundred thirty thousand, thirty-one".