121401293 has 8 divisors (see below), whose sum is σ = 132035736. Its totient is φ = 110952000.

The previous prime is 121401229. The next prime is 121401299. The reversal of 121401293 is 392104121.

It can be written as a sum of positive squares in 4 ways, for example, as 30713764 + 90687529 = 5542^2 + 9523^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121401293 - 2⁶ = 121401229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121401299) 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, 44918 + ... + 47543.

It is an arithmetic number, because the mean of its divisors is an integer number (16504467).

Almost surely, 2^121401293 is an apocalyptic number.

121401293 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121401293 is a deficient number, since it is larger than the sum of its proper divisors (10634443).

121401293 is a wasteful number, since it uses less digits than its factorization.

121401293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92575.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 121401293 is about 11018.2254923377. The cubic root of 121401293 is about 495.1549261683.

The spelling of 121401293 in words is "one hundred twenty-one million, four hundred one thousand, two hundred ninety-three".