102012102331 has 4 divisors (see below), whose sum is σ = 106447411152. Its totient is φ = 97576793512.

The previous prime is 102012102319. The next prime is 102012102341. The reversal of 102012102331 is 133201210201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133201210201 = 19717 ⋅6755653.

It is a cyclic number.

It is not a de Polignac number, because 102012102331 - 2⁵ = 102012102299 is a prime.

It is a super-2 number, since 2×102012102331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102012102301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2217654376 + ... + 2217654421.

It is an arithmetic number, because the mean of its divisors is an integer number (26611852788).

Almost surely, 2^102012102331 is an apocalyptic number.

102012102331 is a deficient number, since it is larger than the sum of its proper divisors (4435308821).

102012102331 is an equidigital number, since it uses as much as digits as its factorization.

102012102331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4435308820.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 102012102331 its reverse (133201210201), we get a palindrome (235213312532).

The spelling of 102012102331 in words is "one hundred two billion, twelve million, one hundred two thousand, three hundred thirty-one".