402311231301240 has 256 divisors, whose sum is σ = 1385584270617600. Its totient is φ = 103776268377600.

The previous prime is 402311231301209. The next prime is 402311231301253. The reversal of 402311231301240 is 42103132113204.

402311231301240 is a `hidden beast` number, since 4 + 0 + 2 + 3 + 112 + 3 + 1 + 301 + 240 = 666.

It is a super-2 number, since 2×402311231301240² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 45432426 + ... + 53560505.

It is an arithmetic number, because the mean of its divisors is an integer number (5412438557100).

Almost surely, 2^{402311231301240} is an apocalyptic number.

402311231301240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402311231301240 is an abundant number, since it is smaller than the sum of its proper divisors (983273039316360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402311231301240 is a wasteful number, since it uses less digits than its factorization.

402311231301240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98993075 (or 98993065 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 402311231301240 its reverse (42103132113204), we get a palindrome (444414363414444).

The spelling of 402311231301240 in words is "four hundred two trillion, three hundred eleven billion, two hundred thirty-one million, three hundred one thousand, two hundred forty".