1201021100131 has 8 divisors (see below), whose sum is σ = 1273883371200. Its totient is φ = 1129123892520.

The previous prime is 1201021100129. The next prime is 1201021100159. The reversal of 1201021100131 is 1310011201021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1201021100131 - 2¹ = 1201021100129 is a prime.

It is a super-2 number, since 2×1201021100131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201021170131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241263301 + ... + 241268278.

It is an arithmetic number, because the mean of its divisors is an integer number (159235421400).

Almost surely, 2^{1201021100131} is an apocalyptic number.

1201021100131 is a deficient number, since it is larger than the sum of its proper divisors (72862271069).

1201021100131 is a wasteful number, since it uses less digits than its factorization.

1201021100131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482531729.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1201021100131 its reverse (1310011201021), we get a palindrome (2511032301152).

The spelling of 1201021100131 in words is "one trillion, two hundred one billion, twenty-one million, one hundred thousand, one hundred thirty-one".