121010243465 has 8 divisors (see below), whose sum is σ = 146186872200. Its totient is φ = 96158474752.

The previous prime is 121010243447. The next prime is 121010243467. The reversal of 121010243465 is 564342010121.

It can be written as a sum of positive squares in 4 ways, for example, as 5933929024 + 115076314441 = 77032^2 + 339229^2 .

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 121010243465 - 2⁸ = 121010243209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121010243467) 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, 81214184 + ... + 81215673.

It is an arithmetic number, because the mean of its divisors is an integer number (18273359025).

Almost surely, 2^121010243465 is an apocalyptic number.

It is an amenable number.

121010243465 is a deficient number, since it is larger than the sum of its proper divisors (25176628735).

121010243465 is a wasteful number, since it uses less digits than its factorization.

121010243465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162430011.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 121010243465 its reverse (564342010121), we get a palindrome (685352253586).

The spelling of 121010243465 in words is "one hundred twenty-one billion, ten million, two hundred forty-three thousand, four hundred sixty-five".