101931429 has 4 divisors (see below), whose sum is σ = 135908576. Its totient is φ = 67954284.

The previous prime is 101931421. The next prime is 101931437. The reversal of 101931429 is 924139101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (101931421) and next prime (101931437).

It is not a de Polignac number, because 101931429 - 2³ = 101931421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101931396 and 101931405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101931421) 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 in 3 ways as a sum of consecutive naturals, for example, 16988569 + ... + 16988574.

It is an arithmetic number, because the mean of its divisors is an integer number (33977144).

Almost surely, 2^101931429 is an apocalyptic number.

It is an amenable number.

101931429 is a deficient number, since it is larger than the sum of its proper divisors (33977147).

101931429 is an equidigital number, since it uses as much as digits as its factorization.

101931429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33977146.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 101931429 is about 10096.1095972657. The cubic root of 101931429 is about 467.1281479745.

The spelling of 101931429 in words is "one hundred one million, nine hundred thirty-one thousand, four hundred twenty-nine".