1021310401444 has 6 divisors (see below), whose sum is σ = 1787293202534. Its totient is φ = 510655200720.

The previous prime is 1021310401417. The next prime is 1021310401453. The reversal of 1021310401444 is 4441040131201.

It can be written as a sum of positive squares in only one way, i.e., 996626849344 + 24683552100 = 998312^2 + 157110^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127663800177 + ... + 127663800184.

Almost surely, 2^{1021310401444} is an apocalyptic number.

It is an amenable number.

1021310401444 is a deficient number, since it is larger than the sum of its proper divisors (765982801090).

1021310401444 is a wasteful number, since it uses less digits than its factorization.

1021310401444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255327600365 (or 255327600363 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1021310401444 its reverse (4441040131201), we get a palindrome (5462350532645).

The spelling of 1021310401444 in words is "one trillion, twenty-one billion, three hundred ten million, four hundred one thousand, four hundred forty-four".