101213807 has 2 divisors, whose sum is σ = 101213808. Its totient is φ = 101213806.

The previous prime is 101213797. The next prime is 101213821. The reversal of 101213807 is 708312101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101213807 - 2¹² = 101209711 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101213867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50606903 + 50606904.

It is an arithmetic number, because the mean of its divisors is an integer number (50606904).

Almost surely, 2^101213807 is an apocalyptic number.

101213807 is a deficient number, since it is larger than the sum of its proper divisors (1).

101213807 is an equidigital number, since it uses as much as digits as its factorization.

101213807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 101213807 is about 10060.5072933724. The cubic root of 101213807 is about 466.0293334393.

Adding to 101213807 its reverse (708312101), we get a palindrome (809525908).

The spelling of 101213807 in words is "one hundred one million, two hundred thirteen thousand, eight hundred seven".