121962306273 has 4 divisors (see below), whose sum is σ = 162616408368. Its totient is φ = 81308204180.

The previous prime is 121962306251. The next prime is 121962306293. The reversal of 121962306273 is 372603269121.

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: 372603269121 = 3 ⋅124201089707.

It is a cyclic number.

It is not a de Polignac number, because 121962306273 - 2¹⁸ = 121962044129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121962306203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20327051043 + ... + 20327051048.

It is an arithmetic number, because the mean of its divisors is an integer number (40654102092).

Almost surely, 2^121962306273 is an apocalyptic number.

It is an amenable number.

121962306273 is a deficient number, since it is larger than the sum of its proper divisors (40654102095).

121962306273 is an equidigital number, since it uses as much as digits as its factorization.

121962306273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40654102094.

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 121962306273 in words is "one hundred twenty-one billion, nine hundred sixty-two million, three hundred six thousand, two hundred seventy-three".