101234220139 has 4 divisors (see below), whose sum is σ = 109021467856. Its totient is φ = 93446972424.

The previous prime is 101234220121. The next prime is 101234220163. The reversal of 101234220139 is 931022432101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 101234220139 - 2¹⁷ = 101234089067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101234220239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3893623839 + ... + 3893623864.

It is an arithmetic number, because the mean of its divisors is an integer number (27255366964).

Almost surely, 2^101234220139 is an apocalyptic number.

101234220139 is a deficient number, since it is larger than the sum of its proper divisors (7787247717).

101234220139 is an equidigital number, since it uses as much as digits as its factorization.

101234220139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7787247716.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 101234220139 in words is "one hundred one billion, two hundred thirty-four million, two hundred twenty thousand, one hundred thirty-nine".