1301201131212 has 72 divisors (see below), whose sum is σ = 3315007895472. Its totient is φ = 430327065600.

The previous prime is 1301201131201. The next prime is 1301201131259. The reversal of 1301201131212 is 2121311021031.

1301201131212 is a `hidden beast` number, since 1 + 301 + 20 + 1 + 131 + 212 = 666.

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 23 ways as a sum of consecutive naturals, for example, 8859012 + ... + 9004692.

It is an arithmetic number, because the mean of its divisors is an integer number (46041776326).

Almost surely, 2^{1301201131212} is an apocalyptic number.

1301201131212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1301201131212 is an abundant number, since it is smaller than the sum of its proper divisors (2013806764260).

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

1301201131212 is a wasteful number, since it uses less digits than its factorization.

1301201131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147639 (or 147634 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1301201131212 its reverse (2121311021031), we get a palindrome (3422512152243).

The spelling of 1301201131212 in words is "one trillion, three hundred one billion, two hundred one million, one hundred thirty-one thousand, two hundred twelve".