15420303021342 has 32 divisors (see below), whose sum is σ = 30870503338752. Its totient is φ = 5135120512704.

The previous prime is 15420303021341. The next prime is 15420303021433. The reversal of 15420303021342 is 24312030302451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15420303021341) 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, 25713018 + ... + 26305890.

It is an arithmetic number, because the mean of its divisors is an integer number (964703229336).

Almost surely, 2^{15420303021342} is an apocalyptic number.

15420303021342 is an abundant number, since it is smaller than the sum of its proper divisors (15450200317410).

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

15420303021342 is a wasteful number, since it uses less digits than its factorization.

15420303021342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597072.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 15420303021342 its reverse (24312030302451), we get a palindrome (39732333323793).

The spelling of 15420303021342 in words is "fifteen trillion, four hundred twenty billion, three hundred three million, twenty-one thousand, three hundred forty-two".