31423120001 has 32 divisors (see below), whose sum is σ = 39711845376. Its totient is φ = 24198336000.

The previous prime is 31423119989. The next prime is 31423120031. The reversal of 31423120001 is 10002132413.

It is a cyclic number.

It is not a de Polignac number, because 31423120001 - 2¹⁴ = 31423103617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31423120031) 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, 1598291 + ... + 1617831.

It is an arithmetic number, because the mean of its divisors is an integer number (1240995168).

Almost surely, 2^31423120001 is an apocalyptic number.

It is an amenable number.

31423120001 is a deficient number, since it is larger than the sum of its proper divisors (8288725375).

31423120001 is a wasteful number, since it uses less digits than its factorization.

31423120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20033.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31423120001 its reverse (10002132413), we get a palindrome (41425252414).

The spelling of 31423120001 in words is "thirty-one billion, four hundred twenty-three million, one hundred twenty thousand, one".