2011122402031 has 4 divisors (see below), whose sum is σ = 2019981972312. Its totient is φ = 2002262831752.

The previous prime is 2011122402013. The next prime is 2011122402041. The reversal of 2011122402031 is 1302042211102.

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 2011122402031 - 2⁵ = 2011122401999 is a prime.

It is a super-2 number, since 2×2011122402031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011122402041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4429784800 + ... + 4429785253.

It is an arithmetic number, because the mean of its divisors is an integer number (504995493078).

Almost surely, 2^{2011122402031} is an apocalyptic number.

2011122402031 is a deficient number, since it is larger than the sum of its proper divisors (8859570281).

2011122402031 is an equidigital number, since it uses as much as digits as its factorization.

2011122402031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8859570280.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2011122402031 its reverse (1302042211102), we get a palindrome (3313164613133).

The spelling of 2011122402031 in words is "two trillion, eleven billion, one hundred twenty-two million, four hundred two thousand, thirty-one".