121328282253 has 4 divisors (see below), whose sum is σ = 161771043008. Its totient is φ = 80885521500.

The previous prime is 121328282249. The next prime is 121328282281. The reversal of 121328282253 is 352282823121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 352282823121 = 3 ⋅117427607707.

It is not a de Polignac number, because 121328282253 - 2² = 121328282249 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 (121328280253) 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, 20221380373 + ... + 20221380378.

It is an arithmetic number, because the mean of its divisors is an integer number (40442760752).

Almost surely, 2^121328282253 is an apocalyptic number.

It is an amenable number.

121328282253 is a deficient number, since it is larger than the sum of its proper divisors (40442760755).

121328282253 is an equidigital number, since it uses as much as digits as its factorization.

121328282253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40442760754.

The product of its digits is 92160, while the sum is 39.

The spelling of 121328282253 in words is "one hundred twenty-one billion, three hundred twenty-eight million, two hundred eighty-two thousand, two hundred fifty-three".