121015542123041 has 4 divisors (see below), whose sum is σ = 121015572218112. Its totient is φ = 121015512027972.

The previous prime is 121015542123011. The next prime is 121015542123043. The reversal of 121015542123041 is 140321245510121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121015542123041 - 2³⁰ = 121014468381217 is a prime.

It is a super-2 number, since 2×121015542123041² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121015542122989 and 121015542123007.

It is not an unprimeable number, because it can be changed into a prime (121015542123043) 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, 7876841 + ... + 17437766.

It is an arithmetic number, because the mean of its divisors is an integer number (30253893054528).

Almost surely, 2^{121015542123041} is an apocalyptic number.

It is an amenable number.

121015542123041 is a deficient number, since it is larger than the sum of its proper divisors (30095071).

121015542123041 is an equidigital number, since it uses as much as digits as its factorization.

121015542123041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30095070.

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 121015542123041 its reverse (140321245510121), we get a palindrome (261336787633162).

The spelling of 121015542123041 in words is "one hundred twenty-one trillion, fifteen billion, five hundred forty-two million, one hundred twenty-three thousand, forty-one".