121401455534 has 8 divisors (see below), whose sum is σ = 182103921120. Its totient is φ = 60700148496.

The previous prime is 121401455533. The next prime is 121401455543. The reversal of 121401455534 is 435554104121.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 121401455494 and 121401455503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121401455531) 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, 53762 + ... + 495674.

It is an arithmetic number, because the mean of its divisors is an integer number (22762990140).

Almost surely, 2^121401455534 is an apocalyptic number.

121401455534 is a deficient number, since it is larger than the sum of its proper divisors (60702465586).

121401455534 is a wasteful number, since it uses less digits than its factorization.

121401455534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579274.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 121401455534 its reverse (435554104121), we get a palindrome (556955559655).

The spelling of 121401455534 in words is "one hundred twenty-one billion, four hundred one million, four hundred fifty-five thousand, five hundred thirty-four".