121040235253 has 8 divisors (see below), whose sum is σ = 138373054272. Its totient is φ = 103717755456.

The previous prime is 121040235241. The next prime is 121040235257. The reversal of 121040235253 is 352532040121.

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

It is a de Polignac number, because none of the positive numbers 2^k-121040235253 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 (121040235257) 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, 2559700 + ... + 2606557.

It is an arithmetic number, because the mean of its divisors is an integer number (17296631784).

Almost surely, 2^121040235253 is an apocalyptic number.

It is an amenable number.

121040235253 is a deficient number, since it is larger than the sum of its proper divisors (17332819019).

121040235253 is an equidigital number, since it uses as much as digits as its factorization.

121040235253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5169611.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 121040235253 its reverse (352532040121), we get a palindrome (473572275374).

The spelling of 121040235253 in words is "one hundred twenty-one billion, forty million, two hundred thirty-five thousand, two hundred fifty-three".