19362540131 has 4 divisors (see below), whose sum is σ = 21122771064. Its totient is φ = 17602309200.

The previous prime is 19362540103. The next prime is 19362540187. The reversal of 19362540131 is 13104526391.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19362540131 is a prime.

It is a super-2 number, since 2×19362540131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19362540091 and 19362540100.

It is not an unprimeable number, because it can be changed into a prime (19362540101) 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, 880115450 + ... + 880115471.

It is an arithmetic number, because the mean of its divisors is an integer number (5280692766).

Almost surely, 2^19362540131 is an apocalyptic number.

19362540131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

19362540131 is a deficient number, since it is larger than the sum of its proper divisors (1760230933).

19362540131 is a wasteful number, since it uses less digits than its factorization.

19362540131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760230932.

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 19362540131 in words is "nineteen billion, three hundred sixty-two million, five hundred forty thousand, one hundred thirty-one".