121231350611 has 8 divisors (see below), whose sum is σ = 138591886080. Its totient is φ = 103881257928.

The previous prime is 121231350607. The next prime is 121231350649. The reversal of 121231350611 is 116053132121.

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

It is not a de Polignac number, because 121231350611 - 2² = 121231350607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121231350811) 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, 2585801 + ... + 2632266.

It is an arithmetic number, because the mean of its divisors is an integer number (17323985760).

Almost surely, 2^121231350611 is an apocalyptic number.

121231350611 is a deficient number, since it is larger than the sum of its proper divisors (17360535469).

121231350611 is an equidigital number, since it uses as much as digits as its factorization.

121231350611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5221393.

The product of its (nonzero) digits is 1080, while the sum is 26.

Adding to 121231350611 its reverse (116053132121), we get a palindrome (237284482732).

The spelling of 121231350611 in words is "one hundred twenty-one billion, two hundred thirty-one million, three hundred fifty thousand, six hundred eleven".