10111243242 has 16 divisors (see below), whose sum is σ = 20228000832. Its totient is φ = 3369495360.

The previous prime is 10111243217. The next prime is 10111243271. The reversal of 10111243242 is 24234211101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205734 + ... + 250097.

It is an arithmetic number, because the mean of its divisors is an integer number (1264250052).

Almost surely, 2^10111243242 is an apocalyptic number.

10111243242 is an abundant number, since it is smaller than the sum of its proper divisors (10116757590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10111243242 is a wasteful number, since it uses less digits than its factorization.

10111243242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459533.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 10111243242 its reverse (24234211101), we get a palindrome (34345454343).

It can be divided in two parts, 1011 and 1243242, that added together give a triangular number (1244253 = T₁₅₇₇).

The spelling of 10111243242 in words is "ten billion, one hundred eleven million, two hundred forty-three thousand, two hundred forty-two".