1201312332100 has 36 divisors (see below), whose sum is σ = 2760191750484. Its totient is φ = 452258759680.

The previous prime is 1201312332061. The next prime is 1201312332167. The reversal of 1201312332100 is 12332131021.

It can be written as a sum of positive squares in 6 ways, for example, as 158009430016 + 1043302902084 = 397504^2 + 1021422^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 353325457 + ... + 353328856.

It is an arithmetic number, because the mean of its divisors is an integer number (76671993069).

Almost surely, 2^{1201312332100} is an apocalyptic number.

1201312332100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201312332100 is an abundant number, since it is smaller than the sum of its proper divisors (1558879418384).

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

1201312332100 is a wasteful number, since it uses less digits than its factorization.

1201312332100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706654344 (or 706654337 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1201312332100 its reverse (12332131021), we get a palindrome (1213644463121).

The spelling of 1201312332100 in words is "one trillion, two hundred one billion, three hundred twelve million, three hundred thirty-two thousand, one hundred".