1244644345031 has 8 divisors (see below), whose sum is σ = 1260698049600. Its totient is φ = 1228674912480.

The previous prime is 1244644344943. The next prime is 1244644345057. The reversal of 1244644345031 is 1305434464421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1244644345031 - 2²⁶ = 1244577236167 is a prime.

It is a super-2 number, since 2×1244644345031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1244644345031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244644347031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21038276 + ... + 21097353.

It is an arithmetic number, because the mean of its divisors is an integer number (157587256200).

Almost surely, 2^{1244644345031} is an apocalyptic number.

1244644345031 is a deficient number, since it is larger than the sum of its proper divisors (16053704569).

1244644345031 is a wasteful number, since it uses less digits than its factorization.

1244644345031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42136009.

The product of its (nonzero) digits is 552960, while the sum is 41.

The spelling of 1244644345031 in words is "one trillion, two hundred forty-four billion, six hundred forty-four million, three hundred forty-five thousand, thirty-one".