1213140122544 has 160 divisors (see below), whose sum is σ = 3603798342144. Its totient is φ = 344473896960.

The previous prime is 1213140122503. The next prime is 1213140122657. The reversal of 1213140122544 is 4452210413121.

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, 42339487 + ... + 42368129.

Almost surely, 2^{1213140122544} is an apocalyptic number.

1213140122544 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 1213140122544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1801899171072).

1213140122544 is an abundant number, since it is smaller than the sum of its proper divisors (2390658219600).

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

1213140122544 is a wasteful number, since it uses less digits than its factorization.

1213140122544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29435 (or 29429 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 1213140122544 its reverse (4452210413121), we get a palindrome (5665350535665).

The spelling of 1213140122544 in words is "one trillion, two hundred thirteen billion, one hundred forty million, one hundred twenty-two thousand, five hundred forty-four".