102012211233031 has 4 divisors (see below), whose sum is σ = 111286048617864. Its totient is φ = 92738373848200.

The previous prime is 102012211233013. The next prime is 102012211233061. The reversal of 102012211233031 is 130332112210201.

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

It is a cyclic number.

It is not a de Polignac number, because 102012211233031 - 2¹¹ = 102012211230983 is a prime.

It is a super-2 number, since 2×102012211233031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102012211232993 and 102012211233011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012211233061) 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, 4636918692400 + ... + 4636918692421.

It is an arithmetic number, because the mean of its divisors is an integer number (27821512154466).

Almost surely, 2^{102012211233031} is an apocalyptic number.

102012211233031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102012211233031 is a deficient number, since it is larger than the sum of its proper divisors (9273837384833).

102012211233031 is an equidigital number, since it uses as much as digits as its factorization.

102012211233031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9273837384832.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 102012211233031 its reverse (130332112210201), we get a palindrome (232344323443232).

The spelling of 102012211233031 in words is "one hundred two trillion, twelve billion, two hundred eleven million, two hundred thirty-three thousand, thirty-one".