1144311402420 has 72 divisors (see below), whose sum is σ = 3471878428200. Its totient is φ = 305079333120.

The previous prime is 1144311402407. The next prime is 1144311402527. The reversal of 1144311402420 is 242041134411.

It can be written as a sum of positive squares in 4 ways, for example, as 164282681124 + 980028721296 = 405318^2 + 989964^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51930 + ... + 1513710.

It is an arithmetic number, because the mean of its divisors is an integer number (48220533725).

Almost surely, 2^{1144311402420} is an apocalyptic number.

1144311402420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144311402420 is an abundant number, since it is smaller than the sum of its proper divisors (2327567025780).

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

1144311402420 is a wasteful number, since it uses less digits than its factorization.

1144311402420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466145 (or 1466140 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 1144311402420 its reverse (242041134411), we get a palindrome (1386352536831).

The spelling of 1144311402420 in words is "one trillion, one hundred forty-four billion, three hundred eleven million, four hundred two thousand, four hundred twenty".