1121620334542 has 16 divisors (see below), whose sum is σ = 1683974964672. Its totient is φ = 560295444960.

The previous prime is 1121620334537. The next prime is 1121620334551. The reversal of 1121620334542 is 2454330261211.

It is a junction number, because it is equal to n+sod(n) for n = 1121620334498 and 1121620334507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31921968 + ... + 31957084.

It is an arithmetic number, because the mean of its divisors is an integer number (105248435292).

Almost surely, 2^{1121620334542} is an apocalyptic number.

1121620334542 is a deficient number, since it is larger than the sum of its proper divisors (562354630130).

1121620334542 is a wasteful number, since it uses less digits than its factorization.

1121620334542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49323.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 1121620334542 its reverse (2454330261211), we get a palindrome (3575950595753).

The spelling of 1121620334542 in words is "one trillion, one hundred twenty-one billion, six hundred twenty million, three hundred thirty-four thousand, five hundred forty-two".