213210121400135 has 8 divisors (see below), whose sum is σ = 261295808354496. Its totient is φ = 166938988670560.

The previous prime is 213210121400123. The next prime is 213210121400201. The reversal of 213210121400135 is 531004121012312.

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

It is not a de Polignac number, because 213210121400135 - 2¹⁶ = 213210121334599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453638555936 + ... + 453638556405.

It is an arithmetic number, because the mean of its divisors is an integer number (32661976044312).

Almost surely, 2^{213210121400135} is an apocalyptic number.

213210121400135 is a deficient number, since it is larger than the sum of its proper divisors (48085686954361).

213210121400135 is an equidigital number, since it uses as much as digits as its factorization.

213210121400135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907277112393.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 213210121400135 its reverse (531004121012312), we get a palindrome (744214242412447).

The spelling of 213210121400135 in words is "two hundred thirteen trillion, two hundred ten billion, one hundred twenty-one million, four hundred thousand, one hundred thirty-five".