1023444400144 has 40 divisors (see below), whose sum is σ = 1985022336600. Its totient is φ = 511180873728.

The previous prime is 1023444400129. The next prime is 1023444400151. The reversal of 1023444400144 is 4410044443201.

It can be written as a sum of positive squares in 4 ways, for example, as 399565580544 + 623878819600 = 632112^2 + 789860^2 .

It is a super-2 number, since 2×1023444400144² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70337382 + ... + 70351930.

It is an arithmetic number, because the mean of its divisors is an integer number (49625558415).

Almost surely, 2^{1023444400144} is an apocalyptic number.

It is an amenable number.

1023444400144 is a deficient number, since it is larger than the sum of its proper divisors (961577936456).

1023444400144 is a wasteful number, since it uses less digits than its factorization.

1023444400144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18907 (or 18901 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 1023444400144 its reverse (4410044443201), we get a palindrome (5433488843345).

The spelling of 1023444400144 in words is "one trillion, twenty-three billion, four hundred forty-four million, four hundred thousand, one hundred forty-four".