1213040144344 has 128 divisors (see below), whose sum is σ = 2701307750400. Its totient is φ = 499877314560.

The previous prime is 1213040144293. The next prime is 1213040144363. The reversal of 1213040144344 is 4434410403121.

It is a super-2 number, since 2×1213040144344² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106466712 + ... + 106478104.

It is an arithmetic number, because the mean of its divisors is an integer number (21103966800).

Almost surely, 2^{1213040144344} is an apocalyptic number.

1213040144344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213040144344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1350653875200).

1213040144344 is an abundant number, since it is smaller than the sum of its proper divisors (1488267606056).

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

1213040144344 is a wasteful number, since it uses less digits than its factorization.

1213040144344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12113 (or 12109 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 1213040144344 its reverse (4434410403121), we get a palindrome (5647450547465).

The spelling of 1213040144344 in words is "one trillion, two hundred thirteen billion, forty million, one hundred forty-four thousand, three hundred forty-four".