1340431031401 has 32 divisors (see below), whose sum is σ = 1674663247872. Its totient is φ = 1042321253760.

The previous prime is 1340431031389. The next prime is 1340431031411. The reversal of 1340431031401 is 1041301340431.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1340431031401 - 2¹⁵ = 1340430998633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340431031411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75906165 + ... + 75923821.

It is an arithmetic number, because the mean of its divisors is an integer number (52333226496).

Almost surely, 2^{1340431031401} is an apocalyptic number.

1340431031401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1340431031401 is a deficient number, since it is larger than the sum of its proper divisors (334232216471).

1340431031401 is a wasteful number, since it uses less digits than its factorization.

1340431031401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19669.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1340431031401 its reverse (1041301340431), we get a palindrome (2381732371832).

The spelling of 1340431031401 in words is "one trillion, three hundred forty billion, four hundred thirty-one million, thirty-one thousand, four hundred one".