203121332211342 has 64 divisors (see below), whose sum is σ = 413479848744000. Its totient is φ = 66510927774720.

The previous prime is 203121332211331. The next prime is 203121332211377. The reversal of 203121332211342 is 243112233121302.

It is a super-2 number, since 2×203121332211342² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 632732592 + ... + 633053532.

It is an arithmetic number, because the mean of its divisors is an integer number (6460622636625).

Almost surely, 2^{203121332211342} is an apocalyptic number.

203121332211342 is an abundant number, since it is smaller than the sum of its proper divisors (210358516532658).

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

203121332211342 is a wasteful number, since it uses less digits than its factorization.

203121332211342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328741.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 203121332211342 its reverse (243112233121302), we get a palindrome (446233565332644).

The spelling of 203121332211342 in words is "two hundred three trillion, one hundred twenty-one billion, three hundred thirty-two million, two hundred eleven thousand, three hundred forty-two".