531023042451109 has 16 divisors (see below), whose sum is σ = 590429613795840. Its totient is φ = 474273662950080.

The previous prime is 531023042451089. The next prime is 531023042451113. The reversal of 531023042451109 is 901154240320135.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 531023042451109 - 2¹⁷ = 531023042320037 is a prime.

It is a super-2 number, since 2×531023042451109² (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 (531023042451149) 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, 121958707 + ... + 126237760.

It is an arithmetic number, because the mean of its divisors is an integer number (36901850862240).

Almost surely, 2^{531023042451109} is an apocalyptic number.

It is an amenable number.

531023042451109 is a deficient number, since it is larger than the sum of its proper divisors (59406571344731).

531023042451109 is a wasteful number, since it uses less digits than its factorization.

531023042451109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248201820.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 531023042451109 in words is "five hundred thirty-one trillion, twenty-three billion, forty-two million, four hundred fifty-one thousand, one hundred nine".