121634340262 has 8 divisors (see below), whose sum is σ = 185021250192. Its totient is φ = 59960590200.

The previous prime is 121634340259. The next prime is 121634340263. The reversal of 121634340262 is 262043436121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121634340263) 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, 428289789 + ... + 428290072.

It is an arithmetic number, because the mean of its divisors is an integer number (23127656274).

Almost surely, 2^121634340262 is an apocalyptic number.

121634340262 is a deficient number, since it is larger than the sum of its proper divisors (63386909930).

121634340262 is an equidigital number, since it uses as much as digits as its factorization.

121634340262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856579934.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 121634340262 its reverse (262043436121), we get a palindrome (383677776383).

The spelling of 121634340262 in words is "one hundred twenty-one billion, six hundred thirty-four million, three hundred forty thousand, two hundred sixty-two".