121405152434 has 8 divisors (see below), whose sum is σ = 186342792240. Its totient is φ = 59290888356.

The previous prime is 121405152433. The next prime is 121405152437. The reversal of 121405152434 is 434251504121.

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

It is a super-2 number, since 2×121405152434² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121405152434.

It is not an unprimeable number, because it can be changed into a prime (121405152431) 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, 705843824 + ... + 705843995.

It is an arithmetic number, because the mean of its divisors is an integer number (23292849030).

Almost surely, 2^121405152434 is an apocalyptic number.

121405152434 is a deficient number, since it is larger than the sum of its proper divisors (64937639806).

121405152434 is a wasteful number, since it uses less digits than its factorization.

121405152434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411687864.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 121405152434 its reverse (434251504121), we get a palindrome (555656656555).

The spelling of 121405152434 in words is "one hundred twenty-one billion, four hundred five million, one hundred fifty-two thousand, four hundred thirty-four".