42121011231311 has 8 divisors (see below), whose sum is σ = 42664894072704. Its totient is φ = 41579910399960.

The previous prime is 42121011231239. The next prime is 42121011231317. The reversal of 42121011231311 is 11313211012124.

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

It is a cyclic number.

It is not a de Polignac number, because 42121011231311 - 2²⁶ = 42120944122447 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 (42121011231317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695472035 + ... + 695532596.

It is an arithmetic number, because the mean of its divisors is an integer number (5333111759088).

Almost surely, 2^{42121011231311} is an apocalyptic number.

42121011231311 is a deficient number, since it is larger than the sum of its proper divisors (543882841393).

42121011231311 is a wasteful number, since it uses less digits than its factorization.

42121011231311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391005021.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 42121011231311 its reverse (11313211012124), we get a palindrome (53434222243435).

The spelling of 42121011231311 in words is "forty-two trillion, one hundred twenty-one billion, eleven million, two hundred thirty-one thousand, three hundred eleven".