31142032001 has 4 divisors (see below), whose sum is σ = 31147460352. Its totient is φ = 31136603652.

The previous prime is 31142031997. The next prime is 31142032003. The reversal of 31142032001 is 10023024113.

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: 10023024113 = 2087 ⋅4802599.

It is a cyclic number.

It is not a de Polignac number, because 31142032001 - 2² = 31142031997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31142032003) 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, 2705561 + ... + 2717046.

It is an arithmetic number, because the mean of its divisors is an integer number (7786865088).

Almost surely, 2^31142032001 is an apocalyptic number.

It is an amenable number.

31142032001 is a deficient number, since it is larger than the sum of its proper divisors (5428351).

31142032001 is an equidigital number, since it uses as much as digits as its factorization.

31142032001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5428350.

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

Adding to 31142032001 its reverse (10023024113), we get a palindrome (41165056114).

The spelling of 31142032001 in words is "thirty-one billion, one hundred forty-two million, thirty-two thousand, one".