111142121342 has 48 divisors (see below), whose sum is σ = 198336273408. Its totient is φ = 46553356080.

The previous prime is 111142121333. The next prime is 111142121369. The reversal of 111142121342 is 243121241111.

It is a super-2 number, since 2×111142121342² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3331967 + ... + 3365157.

It is an arithmetic number, because the mean of its divisors is an integer number (4132005696).

Almost surely, 2^111142121342 is an apocalyptic number.

111142121342 is a deficient number, since it is larger than the sum of its proper divisors (87194152066).

111142121342 is a wasteful number, since it uses less digits than its factorization.

111142121342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33981 (or 33974 counting only the distinct ones).

The product of its digits is 384, while the sum is 23.

Adding to 111142121342 its reverse (243121241111), we get a palindrome (354263362453).

The spelling of 111142121342 in words is "one hundred eleven billion, one hundred forty-two million, one hundred twenty-one thousand, three hundred forty-two".