10121231242 has 8 divisors (see below), whose sum is σ = 15189958116. Its totient is φ = 5057911872.

The previous prime is 10121231227. The next prime is 10121231249. The reversal of 10121231242 is 24213212101.

It can be written as a sum of positive squares in 2 ways, for example, as 7990393321 + 2130837921 = 89389^2 + 46161^2 .

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

It is not an unprimeable number, because it can be changed into a prime (10121231249) 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, 1347193 + ... + 1354684.

Almost surely, 2^10121231242 is an apocalyptic number.

10121231242 is a deficient number, since it is larger than the sum of its proper divisors (5068726874).

10121231242 is a wasteful number, since it uses less digits than its factorization.

10121231242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703752.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 10121231242 its reverse (24213212101), we get a palindrome (34334443343).

The spelling of 10121231242 in words is "ten billion, one hundred twenty-one million, two hundred thirty-one thousand, two hundred forty-two".