121406905230283 has 4 divisors (see below), whose sum is σ = 121424306255640. Its totient is φ = 121389504204928.

The previous prime is 121406905230257. The next prime is 121406905230293. The reversal of 121406905230283 is 382032509604121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121406905230283 is a prime.

It is a super-2 number, since 2×121406905230283² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121406905230293) 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, 8700502213 + ... + 8700516166.

It is an arithmetic number, because the mean of its divisors is an integer number (30356076563910).

Almost surely, 2^{121406905230283} is an apocalyptic number.

121406905230283 is a deficient number, since it is larger than the sum of its proper divisors (17401025357).

121406905230283 is an equidigital number, since it uses as much as digits as its factorization.

121406905230283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17401025356.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 121406905230283 in words is "one hundred twenty-one trillion, four hundred six billion, nine hundred five million, two hundred thirty thousand, two hundred eighty-three".