1098235501131 has 4 divisors (see below), whose sum is σ = 1464314001512. Its totient is φ = 732157000752.

The previous prime is 1098235501087. The next prime is 1098235501157. The reversal of 1098235501131 is 1311055328901.

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

It is not a de Polignac number, because 1098235501131 - 2⁷ = 1098235501003 is a prime.

It is a super-2 number, since 2×1098235501131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1098235501131.

It is not an unprimeable number, because it can be changed into a prime (1098235501171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183039250186 + ... + 183039250191.

It is an arithmetic number, because the mean of its divisors is an integer number (366078500378).

Almost surely, 2^{1098235501131} is an apocalyptic number.

1098235501131 is a deficient number, since it is larger than the sum of its proper divisors (366078500381).

1098235501131 is an equidigital number, since it uses as much as digits as its factorization.

1098235501131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366078500380.

The product of its (nonzero) digits is 32400, while the sum is 39.

It can be divided in two parts, 1098235 and 501131, that added together give a triangular number (1599366 = T₁₇₈₈).

The spelling of 1098235501131 in words is "one trillion, ninety-eight billion, two hundred thirty-five million, five hundred one thousand, one hundred thirty-one".