121124542 has 32 divisors (see below), whose sum is σ = 227036160. Its totient is φ = 47083680.

The previous prime is 121124527. The next prime is 121124551. The reversal of 121124542 is 245421121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116059 + ... + 117097.

It is an arithmetic number, because the mean of its divisors is an integer number (7094880).

Almost surely, 2^121124542 is an apocalyptic number.

121124542 is a deficient number, since it is larger than the sum of its proper divisors (105911618).

121124542 is a wasteful number, since it uses less digits than its factorization.

121124542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816.

The product of its digits is 640, while the sum is 22.

The square root of 121124542 is about 11005.6595440710. The cubic root of 121124542 is about 494.7783819008.

Adding to 121124542 its reverse (245421121), we get a palindrome (366545663).

The spelling of 121124542 in words is "one hundred twenty-one million, one hundred twenty-four thousand, five hundred forty-two".