101320978 has 16 divisors (see below), whose sum is σ = 167443200. Its totient is φ = 45598000.

The previous prime is 101320949. The next prime is 101320987. The reversal of 101320978 is 879023101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20578 + ... + 25021.

It is an arithmetic number, because the mean of its divisors is an integer number (10465200).

Almost surely, 2^101320978 is an apocalyptic number.

101320978 is a deficient number, since it is larger than the sum of its proper divisors (66122222).

101320978 is a wasteful number, since it uses less digits than its factorization.

101320978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45713.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 101320978 is about 10065.8322060324. The cubic root of 101320978 is about 466.1937616380.

The spelling of 101320978 in words is "one hundred one million, three hundred twenty thousand, nine hundred seventy-eight".