31421401433400 has 96 divisors (see below), whose sum is σ = 106261466688000. Its totient is φ = 7617309436800.

The previous prime is 31421401433369. The next prime is 31421401433431. The reversal of 31421401433400 is 433410412413.

It is an interprime number because it is at equal distance from previous prime (31421401433369) and next prime (31421401433431).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2380402600 + ... + 2380415799.

It is an arithmetic number, because the mean of its divisors is an integer number (1106890278000).

Almost surely, 2^{31421401433400} is an apocalyptic number.

31421401433400 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31421401433400 is an abundant number, since it is smaller than the sum of its proper divisors (74840065254600).

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

31421401433400 is a wasteful number, since it uses less digits than its factorization.

31421401433400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4760818429 (or 4760818420 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 31421401433400 its reverse (433410412413), we get a palindrome (31854811845813).

The spelling of 31421401433400 in words is "thirty-one trillion, four hundred twenty-one billion, four hundred one million, four hundred thirty-three thousand, four hundred".