15123010340 has 24 divisors (see below), whose sum is σ = 31861781952. Its totient is φ = 6029497440.

The previous prime is 15123010303. The next prime is 15123010411. The reversal of 15123010340 is 4301032151.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 1225376 + ... + 1237655.

It is an arithmetic number, because the mean of its divisors is an integer number (1327574248).

Almost surely, 2^15123010340 is an apocalyptic number.

15123010340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15123010340 is an abundant number, since it is smaller than the sum of its proper divisors (16738771612).

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

15123010340 is a wasteful number, since it uses less digits than its factorization.

15123010340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2463347 (or 2463345 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 15123010340 its reverse (4301032151), we get a palindrome (19424042491).

The spelling of 15123010340 in words is "fifteen billion, one hundred twenty-three million, ten thousand, three hundred forty".