101231213201 has 4 divisors (see below), whose sum is σ = 101239876404. Its totient is φ = 101222550000.

The previous prime is 101231213183. The next prime is 101231213203. The reversal of 101231213201 is 102312132101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58216038400 + 43015174801 = 241280^2 + 207401^2 .

It is a cyclic number.

It is not a de Polignac number, because 101231213201 - 2¹⁸ = 101230951057 is a prime.

It is a super-2 number, since 2×101231213201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101231213201.

It is not an unprimeable number, because it can be changed into a prime (101231213203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4314050 + ... + 4337451.

It is an arithmetic number, because the mean of its divisors is an integer number (25309969101).

Almost surely, 2^101231213201 is an apocalyptic number.

It is an amenable number.

101231213201 is a deficient number, since it is larger than the sum of its proper divisors (8663203).

101231213201 is an equidigital number, since it uses as much as digits as its factorization.

101231213201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8663202.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 101231213201 its reverse (102312132101), we get a palindrome (203543345302).

It can be divided in two parts, 101231 and 213201, that added together give a cube (314432 = 68³).

The spelling of 101231213201 in words is "one hundred one billion, two hundred thirty-one million, two hundred thirteen thousand, two hundred one".