542100122513 has 4 divisors (see below), whose sum is σ = 542126239668. Its totient is φ = 542074005360.

The previous prime is 542100122507. The next prime is 542100122519. The reversal of 542100122513 is 315221001245.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (542100122507) and next prime (542100122519).

It can be written as a sum of positive squares in 2 ways, for example, as 408138266449 + 133961856064 = 638857^2 + 366008^2 .

It is a cyclic number.

It is not a de Polignac number, because 542100122513 - 2⁸ = 542100122257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542100122519) 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, 13027418 + ... + 13068963.

It is an arithmetic number, because the mean of its divisors is an integer number (135531559917).

Almost surely, 2^542100122513 is an apocalyptic number.

It is an amenable number.

542100122513 is a deficient number, since it is larger than the sum of its proper divisors (26117155).

542100122513 is a wasteful number, since it uses less digits than its factorization.

542100122513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26117154.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 542100122513 its reverse (315221001245), we get a palindrome (857321123758).

The spelling of 542100122513 in words is "five hundred forty-two billion, one hundred million, one hundred twenty-two thousand, five hundred thirteen".