1231202534100 has 1152 divisors, whose sum is σ = 4692107685888. Its totient is φ = 241920000000.

The previous prime is 1231202534077. The next prime is 1231202534117. The reversal of 1231202534100 is 14352021321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 5835082995 + ... + 5835083205.

It is an arithmetic number, because the mean of its divisors is an integer number (4073010144).

Almost surely, 2^{1231202534100} is an apocalyptic number.

1231202534100 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 1231202534100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2346053842944).

1231202534100 is an abundant number, since it is smaller than the sum of its proper divisors (3460905151788).

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

1231202534100 is a wasteful number, since it uses less digits than its factorization.

1231202534100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 1231202534100 its reverse (14352021321), we get a palindrome (1245554555421).

The spelling of 1231202534100 in words is "one trillion, two hundred thirty-one billion, two hundred two million, five hundred thirty-four thousand, one hundred".