121311104242 has 32 divisors (see below), whose sum is σ = 188717299200. Its totient is φ = 58459128000.

The previous prime is 121311104231. The next prime is 121311104263. The reversal of 121311104242 is 242401113121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1079484 + ... + 1186552.

It is an arithmetic number, because the mean of its divisors is an integer number (5897415600).

Almost surely, 2^121311104242 is an apocalyptic number.

121311104242 is a deficient number, since it is larger than the sum of its proper divisors (67406194958).

121311104242 is a wasteful number, since it uses less digits than its factorization.

121311104242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107322.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 121311104242 its reverse (242401113121), we get a palindrome (363712217363).

The spelling of 121311104242 in words is "one hundred twenty-one billion, three hundred eleven million, one hundred four thousand, two hundred forty-two".