121370 has 16 divisors (see below), whose sum is σ = 223560. Its totient is φ = 47424.

The previous prime is 121369. The next prime is 121379. The reversal of 121370 is 73121.

It can be written as a sum of positive squares in 4 ways, for example, as 120409 + 961 = 347^2 + 31^2 .

It is a nialpdrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 121370.

It is not an unprimeable number, because it can be changed into a prime (121379) 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, 416 + ... + 644.

2¹²¹³⁷⁰ is an apocalyptic number.

121370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121370 is a deficient number, since it is larger than the sum of its proper divisors (102190).

121370 is a wasteful number, since it uses less digits than its factorization.

121370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 121370 is about 348.3819742754. The cubic root of 121370 is about 49.5112377982.

Adding to 121370 its reverse (73121), we get a palindrome (194491).

The spelling of 121370 in words is "one hundred twenty-one thousand, three hundred seventy", and thus it is an iban number.