1031204212644 has 48 divisors (see below), whose sum is σ = 2547757110528. Its totient is φ = 323505381888.

The previous prime is 1031204212639. The next prime is 1031204212667. The reversal of 1031204212644 is 4462124021301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10165237 + ... + 10266179.

It is an arithmetic number, because the mean of its divisors is an integer number (53078273136).

Almost surely, 2^{1031204212644} is an apocalyptic number.

It is an amenable number.

1031204212644 is an abundant number, since it is smaller than the sum of its proper divisors (1516552897884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031204212644 is a wasteful number, since it uses less digits than its factorization.

1031204212644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151044 (or 151042 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 1031204212644 its reverse (4462124021301), we get a palindrome (5493328233945).

The spelling of 1031204212644 in words is "one trillion, thirty-one billion, two hundred four million, two hundred twelve thousand, six hundred forty-four".