121453432345 has 32 divisors (see below), whose sum is σ = 174689146368. Its totient is φ = 79256905728.

The previous prime is 121453432327. The next prime is 121453432351. The reversal of 121453432345 is 543234354121.

It is not a de Polignac number, because 121453432345 - 2⁹ = 121453431833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224344 + ... + 541513.

It is an arithmetic number, because the mean of its divisors is an integer number (5459035824).

Almost surely, 2^121453432345 is an apocalyptic number.

It is an amenable number.

121453432345 is a deficient number, since it is larger than the sum of its proper divisors (53235714023).

121453432345 is a wasteful number, since it uses less digits than its factorization.

121453432345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766089.

The product of its digits is 172800, while the sum is 37.

Adding to 121453432345 its reverse (543234354121), we get a palindrome (664687786466).

The spelling of 121453432345 in words is "one hundred twenty-one billion, four hundred fifty-three million, four hundred thirty-two thousand, three hundred forty-five".