1340023201434 has 80 divisors (see below), whose sum is σ = 3265197217128. Its totient is φ = 409037257728.

The previous prime is 1340023201393. The next prime is 1340023201463. The reversal of 1340023201434 is 4341023200431.

1340023201434 is a `hidden beast` number, since 1 + 3 + 4 + 0 + 0 + 23 + 201 + 434 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1338220944225 + 1802257209 = 1156815^2 + 42453^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1340023201398 and 1340023201407.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6473419 + ... + 6677214.

Almost surely, 2^{1340023201434} is an apocalyptic number.

1340023201434 is an abundant number, since it is smaller than the sum of its proper divisors (1925174015694).

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

1340023201434 is a wasteful number, since it uses less digits than its factorization.

1340023201434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13150701 (or 13150692 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 1340023201434 its reverse (4341023200431), we get a palindrome (5681046401865).

The spelling of 1340023201434 in words is "one trillion, three hundred forty billion, twenty-three million, two hundred one thousand, four hundred thirty-four".