102120201231 has 8 divisors (see below), whose sum is σ = 136164650160. Its totient is φ = 68077943232.

The previous prime is 102120201229. The next prime is 102120201247. The reversal of 102120201231 is 132102021201.

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

It is not a de Polignac number, because 102120201231 - 2¹ = 102120201229 is a prime.

It is a super-2 number, since 2×102120201231² (a number of 23 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 102120201231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120201031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435700 + ... + 627753.

It is an arithmetic number, because the mean of its divisors is an integer number (17020581270).

Almost surely, 2^102120201231 is an apocalyptic number.

102120201231 is a deficient number, since it is larger than the sum of its proper divisors (34044448929).

102120201231 is a wasteful number, since it uses less digits than its factorization.

102120201231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095465.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 102120201231 its reverse (132102021201), we get a palindrome (234222222432).

The spelling of 102120201231 in words is "one hundred two billion, one hundred twenty million, two hundred one thousand, two hundred thirty-one".