1345434432020 has 24 divisors (see below), whose sum is σ = 3229042637184. Its totient is φ = 461291805216.

The previous prime is 1345434431981. The next prime is 1345434432029. The reversal of 1345434432020 is 202344345431.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345434432029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4805122832 + ... + 4805123111.

It is an arithmetic number, because the mean of its divisors is an integer number (134543443216).

Almost surely, 2^{1345434432020} is an apocalyptic number.

1345434432020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345434432020 is an abundant number, since it is smaller than the sum of its proper divisors (1883608205164).

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

1345434432020 is a wasteful number, since it uses less digits than its factorization.

1345434432020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9610245959 (or 9610245957 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 1345434432020 its reverse (202344345431), we get a palindrome (1547778777451).

The spelling of 1345434432020 in words is "one trillion, three hundred forty-five billion, four hundred thirty-four million, four hundred thirty-two thousand, twenty".