261534322024031 has 16 divisors (see below), whose sum is σ = 299207832000000. Its totient is φ = 223938689331168.

The previous prime is 261534322023983. The next prime is 261534322024099. The reversal of 261534322024031 is 130420223435162.

It is not a de Polignac number, because 261534322024031 - 2⁶ = 261534322023967 is a prime.

It is a super-2 number, since 2×261534322024031² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261534322024331) 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, 290954720 + ... + 291852218.

It is an arithmetic number, because the mean of its divisors is an integer number (18700489500000).

Almost surely, 2^{261534322024031} is an apocalyptic number.

261534322024031 is a deficient number, since it is larger than the sum of its proper divisors (37673509975969).

261534322024031 is an equidigital number, since it uses as much as digits as its factorization.

261534322024031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940838.

The product of its (nonzero) digits is 207360, while the sum is 38.

Adding to 261534322024031 its reverse (130420223435162), we get a palindrome (391954545459193).

The spelling of 261534322024031 in words is "two hundred sixty-one trillion, five hundred thirty-four billion, three hundred twenty-two million, twenty-four thousand, thirty-one".