121421420121131 has 8 divisors (see below), whose sum is σ = 132552783189120. Its totient is φ = 110545950457152.

The previous prime is 121421420121061. The next prime is 121421420121173. The reversal of 121421420121131 is 131121024124121.

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 121421420121131 - 2⁴² = 117023373610027 is a prime.

It is a super-3 number, since 3×121421420121131³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121421420121131.

It is not an unprimeable number, because it can be changed into a prime (121421420121431) 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, 63973350011 + ... + 63973351908.

It is an arithmetic number, because the mean of its divisors is an integer number (16569097898640).

Almost surely, 2^{121421420121131} is an apocalyptic number.

121421420121131 is a deficient number, since it is larger than the sum of its proper divisors (11131363067989).

121421420121131 is a wasteful number, since it uses less digits than its factorization.

121421420121131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127946702005.

The product of its (nonzero) digits is 768, while the sum is 26.

Adding to 121421420121131 its reverse (131121024124121), we get a palindrome (252542444245252).

The spelling of 121421420121131 in words is "one hundred twenty-one trillion, four hundred twenty-one billion, four hundred twenty million, one hundred twenty-one thousand, one hundred thirty-one".