101212340 has 12 divisors (see below), whose sum is σ = 212545956. Its totient is φ = 40484928.

The previous prime is 101212337. The next prime is 101212343. The reversal of 101212340 is 43212101.

It is an interprime number because it is at equal distance from previous prime (101212337) and next prime (101212343).

It can be written as a sum of positive squares in 2 ways, for example, as 46185616 + 55026724 = 6796^2 + 7418^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101212343) 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, 2530289 + ... + 2530328.

It is an arithmetic number, because the mean of its divisors is an integer number (17712163).

Almost surely, 2^101212340 is an apocalyptic number.

101212340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101212340 is an abundant number, since it is smaller than the sum of its proper divisors (111333616).

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

101212340 is a wasteful number, since it uses less digits than its factorization.

101212340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5060626 (or 5060624 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 101212340 is about 10060.4343842600. The cubic root of 101212340 is about 466.0270818745.

Adding to 101212340 its reverse (43212101), we get a palindrome (144424441).

The spelling of 101212340 in words is "one hundred one million, two hundred twelve thousand, three hundred forty".