1244213021031 has 16 divisors (see below), whose sum is σ = 1686202977888. Its totient is φ = 815850115200.

The previous prime is 1244213021011. The next prime is 1244213021069. The reversal of 1244213021031 is 1301203124421.

It is not a de Polignac number, because 1244213021031 - 2¹⁹ = 1244212496743 is a prime.

It is a super-2 number, since 2×1244213021031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1244213020992 and 1244213021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244213021011) 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, 6389041 + ... + 6580901.

It is an arithmetic number, because the mean of its divisors is an integer number (105387686118).

Almost surely, 2^{1244213021031} is an apocalyptic number.

1244213021031 is a deficient number, since it is larger than the sum of its proper divisors (441989956857).

1244213021031 is a wasteful number, since it uses less digits than its factorization.

1244213021031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227362.

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

Adding to 1244213021031 its reverse (1301203124421), we get a palindrome (2545416145452).

The spelling of 1244213021031 in words is "one trillion, two hundred forty-four billion, two hundred thirteen million, twenty-one thousand, thirty-one".