2111204423031 has 64 divisors (see below), whose sum is σ = 3119935795200. Its totient is φ = 1259250220800.

The previous prime is 2111204423023. The next prime is 2111204423093. The reversal of 2111204423031 is 1303244021112.

It is not a de Polignac number, because 2111204423031 - 2³ = 2111204423023 is a prime.

It is a super-2 number, since 2×2111204423031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2111204422992 and 2111204423010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111204423131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 539809966 + ... + 539813876.

It is an arithmetic number, because the mean of its divisors is an integer number (48748996800).

Almost surely, 2^{2111204423031} is an apocalyptic number.

2111204423031 is a deficient number, since it is larger than the sum of its proper divisors (1008731372169).

2111204423031 is a wasteful number, since it uses less digits than its factorization.

2111204423031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5060.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 2111204423031 its reverse (1303244021112), we get a palindrome (3414448444143).

The spelling of 2111204423031 in words is "two trillion, one hundred eleven billion, two hundred four million, four hundred twenty-three thousand, thirty-one".