1201000123332 has 144 divisors (see below), whose sum is σ = 3165619137408. Its totient is φ = 383692930560.

The previous prime is 1201000123319. The next prime is 1201000123357. The reversal of 1201000123332 is 2333210001021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13260433 + ... + 13350695.

It is an arithmetic number, because the mean of its divisors is an integer number (21983466232).

Almost surely, 2^{1201000123332} is an apocalyptic number.

1201000123332 is a gapful number since it is divisible by the number (12) 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 1201000123332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1582809568704).

1201000123332 is an abundant number, since it is smaller than the sum of its proper divisors (1964619014076).

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

1201000123332 is a wasteful number, since it uses less digits than its factorization.

1201000123332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90490 (or 90485 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1201000123332 its reverse (2333210001021), we get a palindrome (3534210124353).

The spelling of 1201000123332 in words is "one trillion, two hundred one billion, one hundred twenty-three thousand, three hundred thirty-two".