402030521240031 has 24 divisors (see below), whose sum is σ = 588706253197920. Its totient is φ = 264330622515456.

The previous prime is 402030521240027. The next prime is 402030521240057. The reversal of 402030521240031 is 130042125030204.

402030521240031 is a `hidden beast` number, since 4 + 0 + 203 + 0 + 5 + 21 + 2 + 400 + 31 = 666.

It is not a de Polignac number, because 402030521240031 - 2² = 402030521240027 is a prime.

It is a super-2 number, since 2×402030521240031² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402030521239977 and 402030521240004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402030521240021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11534046 + ... + 30612011.

It is an arithmetic number, because the mean of its divisors is an integer number (24529427216580).

Almost surely, 2^{402030521240031} is an apocalyptic number.

402030521240031 is a deficient number, since it is larger than the sum of its proper divisors (186675731957889).

402030521240031 is a wasteful number, since it uses less digits than its factorization.

402030521240031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42160655 (or 42160652 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 402030521240031 its reverse (130042125030204), we get a palindrome (532072646270235).

The spelling of 402030521240031 in words is "four hundred two trillion, thirty billion, five hundred twenty-one million, two hundred forty thousand, thirty-one".