211231131102007 has 2 divisors, whose sum is σ = 211231131102008. Its totient is φ = 211231131102006.

The previous prime is 211231131101941. The next prime is 211231131102077. The reversal of 211231131102007 is 700201131132112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211231131102007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211231131102077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105615565551003 + 105615565551004.

It is an arithmetic number, because the mean of its divisors is an integer number (105615565551004).

Almost surely, 2^{211231131102007} is an apocalyptic number.

211231131102007 is a deficient number, since it is larger than the sum of its proper divisors (1).

211231131102007 is an equidigital number, since it uses as much as digits as its factorization.

211231131102007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

Adding to 211231131102007 its reverse (700201131132112), we get a palindrome (911432262234119).

The spelling of 211231131102007 in words is "two hundred eleven trillion, two hundred thirty-one billion, one hundred thirty-one million, one hundred two thousand, seven".