31120021202023 has 8 divisors (see below), whose sum is σ = 33534021667328. Its totient is φ = 28708899691104.

The previous prime is 31120021201999. The next prime is 31120021202059. The reversal of 31120021202023 is 32020212002113.

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

It is a cyclic number.

It is not a de Polignac number, because 31120021202023 - 2¹⁷ = 31120021070951 is a prime.

It is a super-2 number, since 2×31120021202023² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31120021202423) 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, 719716140 + ... + 719759377.

It is an arithmetic number, because the mean of its divisors is an integer number (4191752708416).

Almost surely, 2^{31120021202023} is an apocalyptic number.

31120021202023 is a deficient number, since it is larger than the sum of its proper divisors (2414000465305).

31120021202023 is a wasteful number, since it uses less digits than its factorization.

31120021202023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439477193.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31120021202023 its reverse (32020212002113), we get a palindrome (63140233204136).

The spelling of 31120021202023 in words is "thirty-one trillion, one hundred twenty billion, twenty-one million, two hundred two thousand, twenty-three".