102032121231 has 8 divisors (see below), whose sum is σ = 151158698160. Its totient is φ = 68021414136.

The previous prime is 102032121229. The next prime is 102032121271. The reversal of 102032121231 is 132121230201.

102032121231 is a `hidden beast` number, since 102 + 0 + 321 + 212 + 31 = 666.

It is not a de Polignac number, because 102032121231 - 2¹ = 102032121229 is a prime.

It is a super-2 number, since 2×102032121231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102032121271) 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, 1889483700 + ... + 1889483753.

It is an arithmetic number, because the mean of its divisors is an integer number (18894837270).

Almost surely, 2^102032121231 is an apocalyptic number.

102032121231 is a deficient number, since it is larger than the sum of its proper divisors (49126576929).

102032121231 is an equidigital number, since it uses as much as digits as its factorization.

102032121231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3778967462 (or 3778967456 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 102032121231 its reverse (132121230201), we get a palindrome (234153351432).

The spelling of 102032121231 in words is "one hundred two billion, thirty-two million, one hundred twenty-one thousand, two hundred thirty-one".