1201321201432 has 96 divisors (see below), whose sum is σ = 2591939750400. Its totient is φ = 520609256640.

The previous prime is 1201321201429. The next prime is 1201321201433. The reversal of 1201321201432 is 2341021231021.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201321201433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6747169 + ... + 6922927.

It is an arithmetic number, because the mean of its divisors is an integer number (26999372400).

Almost surely, 2^{1201321201432} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201321201432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1295969875200).

1201321201432 is an abundant number, since it is smaller than the sum of its proper divisors (1390618548968).

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

1201321201432 is a wasteful number, since it uses less digits than its factorization.

1201321201432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176117 (or 176102 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1201321201432 its reverse (2341021231021), we get a palindrome (3542342432453).

The spelling of 1201321201432 in words is "one trillion, two hundred one billion, three hundred twenty-one million, two hundred one thousand, four hundred thirty-two".