121231451126 has 8 divisors (see below), whose sum is σ = 181880750280. Its totient is φ = 60604534368.

The previous prime is 121231451123. The next prime is 121231451153. The reversal of 121231451126 is 621154132121.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121231451123) 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, 5582051 + ... + 5603726.

It is an arithmetic number, because the mean of its divisors is an integer number (22735093785).

Almost surely, 2^121231451126 is an apocalyptic number.

121231451126 is a deficient number, since it is larger than the sum of its proper divisors (60649299154).

121231451126 is a wasteful number, since it uses less digits than its factorization.

121231451126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11191198.

The product of its digits is 2880, while the sum is 29.

Adding to 121231451126 its reverse (621154132121), we get a palindrome (742385583247).

The spelling of 121231451126 in words is "one hundred twenty-one billion, two hundred thirty-one million, four hundred fifty-one thousand, one hundred twenty-six".