31404130401 has 16 divisors (see below), whose sum is σ = 47886491648. Its totient is φ = 17933000400.

The previous prime is 31404130399. The next prime is 31404130403. The reversal of 31404130401 is 10403140413.

It is an interprime number because it is at equal distance from previous prime (31404130399) and next prime (31404130403).

It is not a de Polignac number, because 31404130401 - 2¹ = 31404130399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31404130403) 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, 477415 + ... + 539196.

It is an arithmetic number, because the mean of its divisors is an integer number (2992905728).

Almost surely, 2^31404130401 is an apocalyptic number.

It is an amenable number.

31404130401 is a deficient number, since it is larger than the sum of its proper divisors (16482361247).

31404130401 is a wasteful number, since it uses less digits than its factorization.

31404130401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018092.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31404130401 its reverse (10403140413), we get a palindrome (41807270814).

The spelling of 31404130401 in words is "thirty-one billion, four hundred four million, one hundred thirty thousand, four hundred one".