10020012031 has 8 divisors (see below), whose sum is σ = 10470812544. Its totient is φ = 9570473880.

The previous prime is 10020012011. The next prime is 10020012061. The reversal of 10020012031 is 13021002001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10020012031 - 2¹³ = 10020003839 is a prime.

It is a super-2 number, since 2×10020012031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10020011999 and 10020012017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020012011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299341 + ... + 331126.

It is an arithmetic number, because the mean of its divisors is an integer number (1308851568).

Almost surely, 2^10020012031 is an apocalyptic number.

10020012031 is a deficient number, since it is larger than the sum of its proper divisors (450800513).

10020012031 is an equidigital number, since it uses as much as digits as its factorization.

10020012031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631181.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 10020012031 its reverse (13021002001), we get a palindrome (23041014032).

The spelling of 10020012031 in words is "ten billion, twenty million, twelve thousand, thirty-one".