1201132030100 has 72 divisors (see below), whose sum is σ = 2762505797688. Its totient is φ = 451743846400.

The previous prime is 1201132030099. The next prime is 1201132030103. The reversal of 1201132030100 is 10302311021.

It can be written as a sum of positive squares in 12 ways, for example, as 168424876816 + 1032707153284 = 410396^2 + 1016222^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201132030103) 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, 1373360 + ... + 2070840.

It is an arithmetic number, because the mean of its divisors is an integer number (38368136079).

Almost surely, 2^{1201132030100} is an apocalyptic number.

1201132030100 is a gapful number since it is divisible by the number (10) 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 1201132030100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1381252898844).

1201132030100 is an abundant number, since it is smaller than the sum of its proper divisors (1561373767588).

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

1201132030100 is a wasteful number, since it uses less digits than its factorization.

1201132030100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698525 (or 698518 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1201132030100 its reverse (10302311021), we get a palindrome (1211434341121).

The spelling of 1201132030100 in words is "one trillion, two hundred one billion, one hundred thirty-two million, thirty thousand, one hundred".