1243022312031 has 16 divisors (see below), whose sum is σ = 1744628121600. Its totient is φ = 785050792128.

The previous prime is 1243022312029. The next prime is 1243022312087. The reversal of 1243022312031 is 1302132203421.

It is not a de Polignac number, because 1243022312031 - 2¹ = 1243022312029 is a prime.

It is a super-2 number, since 2×1243022312031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1243022311992 and 1243022312010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243022310031) 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, 3026850 + ... + 3412896.

It is an arithmetic number, because the mean of its divisors is an integer number (109039257600).

Almost surely, 2^{1243022312031} is an apocalyptic number.

1243022312031 is a deficient number, since it is larger than the sum of its proper divisors (501605809569).

1243022312031 is a wasteful number, since it uses less digits than its factorization.

1243022312031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442558.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1243022312031 its reverse (1302132203421), we get a palindrome (2545154515452).

The spelling of 1243022312031 in words is "one trillion, two hundred forty-three billion, twenty-two million, three hundred twelve thousand, thirty-one".