1243132441650 has 288 divisors, whose sum is σ = 3685180561920. Its totient is φ = 297932544000.

The previous prime is 1243132441637. The next prime is 1243132441657. The reversal of 1243132441650 is 561442313421.

1243132441650 is a `hidden beast` number, since 1 + 24 + 3 + 132 + 441 + 65 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (1243132441657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 235483711 + ... + 235488989.

It is an arithmetic number, because the mean of its divisors is an integer number (12795765840).

Almost surely, 2^{1243132441650} is an apocalyptic number.

1243132441650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1243132441650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1842590280960).

1243132441650 is an abundant number, since it is smaller than the sum of its proper divisors (2442048120270).

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

1243132441650 is a wasteful number, since it uses less digits than its factorization.

1243132441650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5842 (or 5834 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 1243132441650 in words is "one trillion, two hundred forty-three billion, one hundred thirty-two million, four hundred forty-one thousand, six hundred fifty".