101179331381 has 2 divisors, whose sum is σ = 101179331382. Its totient is φ = 101179331380.

The previous prime is 101179331377. The next prime is 101179331413. The reversal of 101179331381 is 183133971101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72396512356 + 28782819025 = 269066^2 + 169655^2 .

It is an emirp because it is prime and its reverse (183133971101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101179331381 - 2² = 101179331377 is a prime.

It is a super-2 number, since 2×101179331381² (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 (101179331321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50589665690 + 50589665691.

It is an arithmetic number, because the mean of its divisors is an integer number (50589665691).

Almost surely, 2^101179331381 is an apocalyptic number.

It is an amenable number.

101179331381 is a deficient number, since it is larger than the sum of its proper divisors (1).

101179331381 is an equidigital number, since it uses as much as digits as its factorization.

101179331381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 38.

The spelling of 101179331381 in words is "one hundred one billion, one hundred seventy-nine million, three hundred thirty-one thousand, three hundred eighty-one".