121762420427 has 8 divisors (see below), whose sum is σ = 124066166400. Its totient is φ = 119458909440.

The previous prime is 121762420411. The next prime is 121762420469. The reversal of 121762420427 is 724024267121.

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 121762420427 - 2⁴ = 121762420411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121762420477) 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, 1268027 + ... + 1360667.

It is an arithmetic number, because the mean of its divisors is an integer number (15508270800).

Almost surely, 2^121762420427 is an apocalyptic number.

121762420427 is a deficient number, since it is larger than the sum of its proper divisors (2303745973).

121762420427 is an equidigital number, since it uses as much as digits as its factorization.

121762420427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117493.

The product of its (nonzero) digits is 75264, while the sum is 38.

Adding to 121762420427 its reverse (724024267121), we get a palindrome (845786687548).

The spelling of 121762420427 in words is "one hundred twenty-one billion, seven hundred sixty-two million, four hundred twenty thousand, four hundred twenty-seven".