10402121201234 has 64 divisors (see below), whose sum is σ = 18631850065920. Its totient is φ = 4261739391360.

The previous prime is 10402121201231. The next prime is 10402121201249. The reversal of 10402121201234 is 43210212120401.

It is not an unprimeable number, because it can be changed into a prime (10402121201231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40932767 + ... + 41186109.

It is an arithmetic number, because the mean of its divisors is an integer number (291122657280).

Almost surely, 2^{10402121201234} is an apocalyptic number.

10402121201234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

10402121201234 is a deficient number, since it is larger than the sum of its proper divisors (8229728864686).

10402121201234 is a wasteful number, since it uses less digits than its factorization.

10402121201234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254535.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 10402121201234 its reverse (43210212120401), we get a palindrome (53612333321635).

The spelling of 10402121201234 in words is "ten trillion, four hundred two billion, one hundred twenty-one million, two hundred one thousand, two hundred thirty-four".