402402155331 has 16 divisors (see below), whose sum is σ = 585805385088. Its totient is φ = 243674611200.

The previous prime is 402402155329. The next prime is 402402155377. The reversal of 402402155331 is 133551204204.

It is not a de Polignac number, because 402402155331 - 2¹ = 402402155329 is a prime.

It is a super-2 number, since 2×402402155331² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (402402155131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5097310 + ... + 5175651.

It is an arithmetic number, because the mean of its divisors is an integer number (36612836568).

Almost surely, 2^402402155331 is an apocalyptic number.

402402155331 is a deficient number, since it is larger than the sum of its proper divisors (183403229757).

402402155331 is a wasteful number, since it uses less digits than its factorization.

402402155331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10274162.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 402402155331 its reverse (133551204204), we get a palindrome (535953359535).

The spelling of 402402155331 in words is "four hundred two billion, four hundred two million, one hundred fifty-five thousand, three hundred thirty-one".