31400543433343 has 72 divisors (see below), whose sum is σ = 38334041233488. Its totient is φ = 25643793466368.

The previous prime is 31400543433323. The next prime is 31400543433353. The reversal of 31400543433343 is 34333434500413.

It is not a de Polignac number, because 31400543433343 - 2²¹ = 31400541336191 is a prime.

It is a super-4 number, since 4×31400543433343⁴ (a number of 55 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31400543433296 and 31400543433305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31400543433323) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 15491140296 + ... + 15491142322.

It is an arithmetic number, because the mean of its divisors is an integer number (532417239354).

Almost surely, 2^{31400543433343} is an apocalyptic number.

31400543433343 is a deficient number, since it is larger than the sum of its proper divisors (6933497800145).

31400543433343 is a wasteful number, since it uses less digits than its factorization.

31400543433343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4133 (or 4103 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 40.

Adding to 31400543433343 its reverse (34333434500413), we get a palindrome (65733977933756).

The spelling of 31400543433343 in words is "thirty-one trillion, four hundred billion, five hundred forty-three million, four hundred thirty-three thousand, three hundred forty-three".