20130223142992 has 40 divisors (see below), whose sum is σ = 39040198142400. Its totient is φ = 10055337583872.

The previous prime is 20130223142971. The next prime is 20130223142993. The reversal of 20130223142992 is 29924132203102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130223142993) 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, 76371684 + ... + 76634812.

It is an arithmetic number, because the mean of its divisors is an integer number (976004953560).

Almost surely, 2^{20130223142992} is an apocalyptic number.

It is an amenable number.

20130223142992 is a deficient number, since it is larger than the sum of its proper divisors (18909974999408).

20130223142992 is a wasteful number, since it uses less digits than its factorization.

20130223142992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267763 (or 267757 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 20130223142992 in words is "twenty trillion, one hundred thirty billion, two hundred twenty-three million, one hundred forty-two thousand, nine hundred ninety-two".