201021130231290 has 192 divisors, whose sum is σ = 536168908154880. Its totient is φ = 52229947660800.

The previous prime is 201021130231223. The next prime is 201021130231291. The reversal of 201021130231290 is 92132031120102.

201021130231290 is a `hidden beast` number, since 2 + 0 + 10 + 2 + 1 + 130 + 231 + 290 = 666.

It is not an unprimeable number, because it can be changed into a prime (201021130231291) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3595992340 + ... + 3596048240.

It is an arithmetic number, because the mean of its divisors is an integer number (2792546396640).

Almost surely, 2^{201021130231290} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201021130231290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268084454077440).

201021130231290 is an abundant number, since it is smaller than the sum of its proper divisors (335147777923590).

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

201021130231290 is a wasteful number, since it uses less digits than its factorization.

201021130231290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59757 (or 59754 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

Adding to 201021130231290 its reverse (92132031120102), we get a palindrome (293153161351392).

The spelling of 201021130231290 in words is "two hundred one trillion, twenty-one billion, one hundred thirty million, two hundred thirty-one thousand, two hundred ninety".