2123444403031 has 16 divisors (see below), whose sum is σ = 2532419970048. Its totient is φ = 1740882528000.

The previous prime is 2123444402999. The next prime is 2123444403121. The reversal of 2123444403031 is 1303044443212.

It is not a de Polignac number, because 2123444403031 - 2⁵ = 2123444402999 is a prime.

It is a super-2 number, since 2×2123444403031² (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 = 2123444402984 and 2123444403002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123444403631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3451126 + ... + 4019596.

It is an arithmetic number, because the mean of its divisors is an integer number (158276248128).

Almost surely, 2^{2123444403031} is an apocalyptic number.

2123444403031 is a deficient number, since it is larger than the sum of its proper divisors (408975567017).

2123444403031 is a wasteful number, since it uses less digits than its factorization.

2123444403031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591702.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 2123444403031 its reverse (1303044443212), we get a palindrome (3426488846243).

The spelling of 2123444403031 in words is "two trillion, one hundred twenty-three billion, four hundred forty-four million, four hundred three thousand, thirty-one".