121506906346 has 16 divisors (see below), whose sum is σ = 219260583360. Its totient is φ = 49333631040.

The previous prime is 121506906319. The next prime is 121506906397. The reversal of 121506906346 is 643609605121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228396175 + ... + 228396706.

It is an arithmetic number, because the mean of its divisors is an integer number (13703786460).

Almost surely, 2^121506906346 is an apocalyptic number.

121506906346 is a deficient number, since it is larger than the sum of its proper divisors (97753677014).

121506906346 is a wasteful number, since it uses less digits than its factorization.

121506906346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456792909.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 121506906346 in words is "one hundred twenty-one billion, five hundred six million, nine hundred six thousand, three hundred forty-six".