201331231030 has 128 divisors (see below), whose sum is σ = 400424653440. Its totient is φ = 72576860160.

The previous prime is 201331231027. The next prime is 201331231043. The reversal of 201331231030 is 30132133102.

It is a junction number, because it is equal to n+sod(n) for n = 201331230989 and 201331231007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 84273076 + ... + 84275464.

It is an arithmetic number, because the mean of its divisors is an integer number (3128317605).

Almost surely, 2^201331231030 is an apocalyptic number.

201331231030 is a deficient number, since it is larger than the sum of its proper divisors (199093422410).

201331231030 is a wasteful number, since it uses less digits than its factorization.

201331231030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2674.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 201331231030 its reverse (30132133102), we get a palindrome (231463364132).

The spelling of 201331231030 in words is "two hundred one billion, three hundred thirty-one million, two hundred thirty-one thousand, thirty".