101213120 has 28 divisors (see below), whose sum is σ = 241014504. Its totient is φ = 40485120.

The previous prime is 101213111. The next prime is 101213129. The reversal of 101213120 is 21312101.

It is an interprime number because it is at equal distance from previous prime (101213111) and next prime (101213129).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101213129) 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, 157826 + ... + 158465.

Almost surely, 2^101213120 is an apocalyptic number.

101213120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101213120 is an abundant number, since it is smaller than the sum of its proper divisors (139801384).

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

101213120 is an equidigital number, since it uses as much as digits as its factorization.

101213120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316308 (or 316298 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 101213120 is about 10060.4731499070. The cubic root of 101213120 is about 466.0282790283.

Adding to 101213120 its reverse (21312101), we get a palindrome (122525221).

The spelling of 101213120 in words is "one hundred one million, two hundred thirteen thousand, one hundred twenty".