7372120231 has 4 divisors (see below), whose sum is σ = 8425280272. Its totient is φ = 6318960192.

The previous prime is 7372120181. The next prime is 7372120271. The reversal of 7372120231 is 1320212737.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1320212737 = 1181 ⋅1117877.

It is a cyclic number.

It is not a de Polignac number, because 7372120231 - 2¹³ = 7372112039 is a prime.

It is a super-2 number, since 2×7372120231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7372120231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7372120271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526580010 + ... + 526580023.

It is an arithmetic number, because the mean of its divisors is an integer number (2106320068).

Almost surely, 2^7372120231 is an apocalyptic number.

7372120231 is a deficient number, since it is larger than the sum of its proper divisors (1053160041).

7372120231 is a wasteful number, since it uses less digits than its factorization.

7372120231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053160040.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 7372120231 is about 85861.0518861725. The cubic root of 7372120231 is about 1946.2448205939.

Adding to 7372120231 its reverse (1320212737), we get a palindrome (8692332968).

The spelling of 7372120231 in words is "seven billion, three hundred seventy-two million, one hundred twenty thousand, two hundred thirty-one".