15120213340 has 48 divisors (see below), whose sum is σ = 33147455040. Its totient is φ = 5782599680.

The previous prime is 15120213337. The next prime is 15120213347. The reversal of 15120213340 is 4331202151.

It is a happy number.

It is a super-2 number, since 2×15120213340² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15120213347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1310316 + ... + 1321804.

It is an arithmetic number, because the mean of its divisors is an integer number (690571980).

Almost surely, 2^15120213340 is an apocalyptic number.

15120213340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15120213340 is an abundant number, since it is smaller than the sum of its proper divisors (18027241700).

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

15120213340 is a wasteful number, since it uses less digits than its factorization.

15120213340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14382 (or 14380 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 15120213340 its reverse (4331202151), we get a palindrome (19451415491).

It can be divided in two parts, 1512021 and 3340, that added together give a square (1515361 = 1231²).

The spelling of 15120213340 in words is "fifteen billion, one hundred twenty million, two hundred thirteen thousand, three hundred forty".