31423133401 has 4 divisors (see below), whose sum is σ = 34279781904. Its totient is φ = 28566484900.

The previous prime is 31423133363. The next prime is 31423133411. The reversal of 31423133401 is 10433132413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10433132413 = 11 ⋅948466583.

It is a cyclic number.

It is not a de Polignac number, because 31423133401 - 2¹⁵ = 31423100633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31423133411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428324235 + ... + 1428324256.

It is an arithmetic number, because the mean of its divisors is an integer number (8569945476).

Almost surely, 2^31423133401 is an apocalyptic number.

It is an amenable number.

31423133401 is a deficient number, since it is larger than the sum of its proper divisors (2856648503).

31423133401 is a wasteful number, since it uses less digits than its factorization.

31423133401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2856648502.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31423133401 its reverse (10433132413), we get a palindrome (41856265814).

The spelling of 31423133401 in words is "thirty-one billion, four hundred twenty-three million, one hundred thirty-three thousand, four hundred one".