102011212031 has 2 divisors, whose sum is σ = 102011212032. Its totient is φ = 102011212030.

The previous prime is 102011211989. The next prime is 102011212049. The reversal of 102011212031 is 130212110201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102011212031 is a prime.

It is a super-2 number, since 2×102011212031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102011211997 and 102011212015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102011212081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51005606015 + 51005606016.

It is an arithmetic number, because the mean of its divisors is an integer number (51005606016).

Almost surely, 2^102011212031 is an apocalyptic number.

102011212031 is a deficient number, since it is larger than the sum of its proper divisors (1).

102011212031 is an equidigital number, since it uses as much as digits as its factorization.

102011212031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 102011212031 its reverse (130212110201), we get a palindrome (232223322232).

The spelling of 102011212031 in words is "one hundred two billion, eleven million, two hundred twelve thousand, thirty-one".