140423023220520 has 64 divisors (see below), whose sum is σ = 421517900200320. Its totient is φ = 37424021255424.

The previous prime is 140423023220461. The next prime is 140423023220549. The reversal of 140423023220520 is 25022320324041.

It is a super-2 number, since 2×140423023220520² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345393964 + ... + 345800283.

It is an arithmetic number, because the mean of its divisors is an integer number (6586217190630).

Almost surely, 2^{140423023220520} is an apocalyptic number.

140423023220520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140423023220520 is an abundant number, since it is smaller than the sum of its proper divisors (281094876979800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140423023220520 is a wasteful number, since it uses less digits than its factorization.

140423023220520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691195954 (or 691195950 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 140423023220520 its reverse (25022320324041), we get a palindrome (165445343544561).

The spelling of 140423023220520 in words is "one hundred forty trillion, four hundred twenty-three billion, twenty-three million, two hundred twenty thousand, five hundred twenty".