121342522511 has 8 divisors (see below), whose sum is σ = 138705457440. Its totient is φ = 103986659808.

The previous prime is 121342522471. The next prime is 121342522579. The reversal of 121342522511 is 115225243121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121342522511 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 (121342222511) 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, 1731236 + ... + 1799961.

It is an arithmetic number, because the mean of its divisors is an integer number (17338182180).

Almost surely, 2^121342522511 is an apocalyptic number.

121342522511 is a deficient number, since it is larger than the sum of its proper divisors (17362934929).

121342522511 is an equidigital number, since it uses as much as digits as its factorization.

121342522511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3536113.

The product of its digits is 4800, while the sum is 29.

Adding to 121342522511 its reverse (115225243121), we get a palindrome (236567765632).

The spelling of 121342522511 in words is "one hundred twenty-one billion, three hundred forty-two million, five hundred twenty-two thousand, five hundred eleven".