101081852129 has 4 divisors (see below), whose sum is σ = 102795103920. Its totient is φ = 99368600340.

The previous prime is 101081852093. The next prime is 101081852143. The reversal of 101081852129 is 921258180101.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101081852129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101081852092 and 101081852101.

It is not an unprimeable number, because it can be changed into a prime (101081852159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 856625807 + ... + 856625924.

It is an arithmetic number, because the mean of its divisors is an integer number (25698775980).

Almost surely, 2^101081852129 is an apocalyptic number.

It is an amenable number.

101081852129 is a deficient number, since it is larger than the sum of its proper divisors (1713251791).

101081852129 is an equidigital number, since it uses as much as digits as its factorization.

101081852129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713251790.

The product of its (nonzero) digits is 11520, while the sum is 38.

The spelling of 101081852129 in words is "one hundred one billion, eighty-one million, eight hundred fifty-two thousand, one hundred twenty-nine".