402110511231 has 32 divisors (see below), whose sum is σ = 635658186240. Its totient is φ = 222893078400.

The previous prime is 402110511221. The next prime is 402110511269. The reversal of 402110511231 is 132115011204.

It is not a de Polignac number, because 402110511231 - 2³⁰ = 401036769407 is a prime.

It is a super-2 number, since 2×402110511231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402110511198 and 402110511207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402110511221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4252875 + ... + 4346396.

It is an arithmetic number, because the mean of its divisors is an integer number (19864318320).

Almost surely, 2^402110511231 is an apocalyptic number.

402110511231 is a deficient number, since it is larger than the sum of its proper divisors (233547675009).

402110511231 is a wasteful number, since it uses less digits than its factorization.

402110511231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8599407.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 402110511231 its reverse (132115011204), we get a palindrome (534225522435).

The spelling of 402110511231 in words is "four hundred two billion, one hundred ten million, five hundred eleven thousand, two hundred thirty-one".