201030131211 has 64 divisors (see below), whose sum is σ = 339776640000. Its totient is φ = 105046115328.

The previous prime is 201030131189. The next prime is 201030131219. The reversal of 201030131211 is 112131030102.

It is a happy number.

It is not a de Polignac number, because 201030131211 - 2¹⁴ = 201030114827 is a prime.

It is a super-2 number, since 2×201030131211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201030131219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1361115 + ... + 1501563.

It is an arithmetic number, because the mean of its divisors is an integer number (5309010000).

Almost surely, 2^201030131211 is an apocalyptic number.

201030131211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

201030131211 is a deficient number, since it is larger than the sum of its proper divisors (138746508789).

201030131211 is a wasteful number, since it uses less digits than its factorization.

201030131211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140593 (or 140579 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 201030131211 its reverse (112131030102), we get a palindrome (313161161313).

The spelling of 201030131211 in words is "two hundred one billion, thirty million, one hundred thirty-one thousand, two hundred eleven".