202000123402 has 48 divisors (see below), whose sum is σ = 392693505408. Its totient is φ = 77026830720.

The previous prime is 202000123393. The next prime is 202000123421. The reversal of 202000123402 is 204321000202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1942783 + ... + 2044114.

It is an arithmetic number, because the mean of its divisors is an integer number (8181114696).

Almost surely, 2^202000123402 is an apocalyptic number.

202000123402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

202000123402 is a deficient number, since it is larger than the sum of its proper divisors (190693382006).

202000123402 is a wasteful number, since it uses less digits than its factorization.

202000123402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3986971 (or 3986964 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 202000123402 its reverse (204321000202), we get a palindrome (406321123604).

The spelling of 202000123402 in words is "two hundred two billion, one hundred twenty-three thousand, four hundred two".