101378831 has 2 divisors, whose sum is σ = 101378832. Its totient is φ = 101378830.

The previous prime is 101378801. The next prime is 101378857. The reversal of 101378831 is 138873101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101378831 is a prime.

It is a super-2 number, since 2×101378831² = 20555334749853122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101378801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50689415 + 50689416.

It is an arithmetic number, because the mean of its divisors is an integer number (50689416).

Almost surely, 2^101378831 is an apocalyptic number.

101378831 is a deficient number, since it is larger than the sum of its proper divisors (1).

101378831 is an equidigital number, since it uses as much as digits as its factorization.

101378831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 101378831 is about 10068.7055275244. The cubic root of 101378831 is about 466.2824750073.

The spelling of 101378831 in words is "one hundred one million, three hundred seventy-eight thousand, eight hundred thirty-one".