7324121142 has 64 divisors (see below), whose sum is σ = 17548661760. Its totient is φ = 2250895392.

The previous prime is 7324121113. The next prime is 7324121143. The reversal of 7324121142 is 2411214237.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7324121143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 630963 + ... + 642465.

It is an arithmetic number, because the mean of its divisors is an integer number (274197840).

Almost surely, 2^7324121142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7324121142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8774330880).

7324121142 is an abundant number, since it is smaller than the sum of its proper divisors (10224540618).

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

7324121142 is a wasteful number, since it uses less digits than its factorization.

7324121142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12434 (or 12428 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 7324121142 is about 85581.0793458461. The cubic root of 7324121142 is about 1942.0116892459.

Adding to 7324121142 its reverse (2411214237), we get a palindrome (9735335379).

The spelling of 7324121142 in words is "seven billion, three hundred twenty-four million, one hundred twenty-one thousand, one hundred forty-two".