101221431007 has 2 divisors, whose sum is σ = 101221431008. Its totient is φ = 101221431006.

The previous prime is 101221430977. The next prime is 101221431019. The reversal of 101221431007 is 700134122101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101221431007 is a prime.

It is a super-2 number, since 2×101221431007² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101221438007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610715503 + 50610715504.

It is an arithmetic number, because the mean of its divisors is an integer number (50610715504).

Almost surely, 2^101221431007 is an apocalyptic number.

101221431007 is a deficient number, since it is larger than the sum of its proper divisors (1).

101221431007 is an equidigital number, since it uses as much as digits as its factorization.

101221431007 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 22.

Adding to 101221431007 its reverse (700134122101), we get a palindrome (801355553108).

The spelling of 101221431007 in words is "one hundred one billion, two hundred twenty-one million, four hundred thirty-one thousand, seven".