74230121311 has 4 divisors (see below), whose sum is σ = 74771947152. Its totient is φ = 73688295472.

The previous prime is 74230121299. The next prime is 74230121327. The reversal of 74230121311 is 11312103247.

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

It is a cyclic number.

It is not a de Polignac number, because 74230121311 - 2⁵ = 74230121279 is a prime.

It is a super-2 number, since 2×74230121311² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74230121011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270912715 + ... + 270912988.

It is an arithmetic number, because the mean of its divisors is an integer number (18692986788).

Almost surely, 2^74230121311 is an apocalyptic number.

74230121311 is a deficient number, since it is larger than the sum of its proper divisors (541825841).

74230121311 is a wasteful number, since it uses less digits than its factorization.

74230121311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541825840.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 74230121311 its reverse (11312103247), we get a palindrome (85542224558).

The spelling of 74230121311 in words is "seventy-four billion, two hundred thirty million, one hundred twenty-one thousand, three hundred eleven".