231211101022010 has 8 divisors (see below), whose sum is σ = 416179981839636. Its totient is φ = 92484440408800.

The previous prime is 231211101021991. The next prime is 231211101022021. The reversal of 231211101022010 is 10220101112132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 227555444973481 + 3655656048529 = 15084941^2 + 1911977^2 .

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

It is a super-2 number, since 2×231211101022010² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231211101022010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11560555051091 + ... + 11560555051110.

Almost surely, 2^{231211101022010} is an apocalyptic number.

231211101022010 is a deficient number, since it is larger than the sum of its proper divisors (184968880817626).

231211101022010 is a wasteful number, since it uses less digits than its factorization.

231211101022010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23121110102208.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 231211101022010 its reverse (10220101112132), we get a palindrome (241431202134142).

The spelling of 231211101022010 in words is "two hundred thirty-one trillion, two hundred eleven billion, one hundred one million, twenty-two thousand, ten".