31400343204411 has 16 divisors (see below), whose sum is σ = 41920645801760. Its totient is φ = 20906813940480.

The previous prime is 31400343204409. The next prime is 31400343204449. The reversal of 31400343204411 is 11440234300413.

It is not a de Polignac number, because 31400343204411 - 2¹ = 31400343204409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31400343204011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8437701 + ... + 11575641.

It is an arithmetic number, because the mean of its divisors is an integer number (2620040362610).

Almost surely, 2^{31400343204411} is an apocalyptic number.

31400343204411 is a deficient number, since it is larger than the sum of its proper divisors (10520302597349).

31400343204411 is a wasteful number, since it uses less digits than its factorization.

31400343204411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142206.

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

Adding to 31400343204411 its reverse (11440234300413), we get a palindrome (42840577504824).

The spelling of 31400343204411 in words is "thirty-one trillion, four hundred billion, three hundred forty-three million, two hundred four thousand, four hundred eleven".