121270394263 has 4 divisors (see below), whose sum is σ = 121271468328. Its totient is φ = 121269320200.

The previous prime is 121270394233. The next prime is 121270394269. The reversal of 121270394263 is 362493072121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121270394263 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 (121270394269) 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, 344713 + ... + 601138.

It is an arithmetic number, because the mean of its divisors is an integer number (30317867082).

Almost surely, 2^121270394263 is an apocalyptic number.

121270394263 is a deficient number, since it is larger than the sum of its proper divisors (1074065).

121270394263 is an equidigital number, since it uses as much as digits as its factorization.

121270394263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074064.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 121270394263 in words is "one hundred twenty-one billion, two hundred seventy million, three hundred ninety-four thousand, two hundred sixty-three".