101861213897 has 8 divisors (see below), whose sum is σ = 104758145856. Its totient is φ = 98971857072.

The previous prime is 101861213873. The next prime is 101861213929. The reversal of 101861213897 is 798312168101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101861213897 - 2²⁰ = 101860165321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101861218897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1866503 + ... + 1920300.

It is an arithmetic number, because the mean of its divisors is an integer number (13094768232).

Almost surely, 2^101861213897 is an apocalyptic number.

It is an amenable number.

101861213897 is a deficient number, since it is larger than the sum of its proper divisors (2896931959).

101861213897 is an equidigital number, since it uses as much as digits as its factorization.

101861213897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787567.

The product of its (nonzero) digits is 145152, while the sum is 47.

The spelling of 101861213897 in words is "one hundred one billion, eight hundred sixty-one million, two hundred thirteen thousand, eight hundred ninety-seven".