101215340 has 12 divisors (see below), whose sum is σ = 212552256. Its totient is φ = 40486128.

The previous prime is 101215327. The next prime is 101215349. The reversal of 101215340 is 43512101.

It is not an unprimeable number, because it can be changed into a prime (101215349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2530364 + ... + 2530403.

It is an arithmetic number, because the mean of its divisors is an integer number (17712688).

Almost surely, 2^101215340 is an apocalyptic number.

101215340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101215340 is an abundant number, since it is smaller than the sum of its proper divisors (111336916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101215340 is a wasteful number, since it uses less digits than its factorization.

101215340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5060776 (or 5060774 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 101215340 is about 10060.5834820849. The cubic root of 101215340 is about 466.0316862783.

Adding to 101215340 its reverse (43512101), we get a palindrome (144727441).

The spelling of 101215340 in words is "one hundred one million, two hundred fifteen thousand, three hundred forty".